It's about 1,000 times as heavy as a Polar Bear.
In other words, 635,000,000 grams is 1,230 times the weight of a Polar Bear, and the weight of a Polar Bear is 0.000813 times that amount.(Ursus maritimus) (adult, male)
An adult, male polar bear weighs between 516,000 grams. Polar bears are so heavily insulated by their 9.9 cm (3.9 in) layer of blubber that they are often difficult to detect using infrared photography sensors.
It's about one-one-thousand-five-hundredth as heavy as The Golden Gate Bridge.
In other words, 635,000,000 grams is 0.000789 times the weight of The Golden Gate Bridge, and the weight of The Golden Gate Bridge is 1,270 times that amount.(San Francisco, California and Marin County, California) (Post 1986 weight reduction; total weight of bridge, anchorage, and approaches)
Following the completion of the 1986 project to eliminate excess material, the total weight of the Golden Gate Bridge — including its anchorages and approaches — is 805,000,000,000 grams. The two main cables in the spanning the bridge are spun out of a total of 129,000 km (80,200 mi) of wire.
It's about 1,500 times as heavy as a Grand Piano.
It's about 1,500 times as heavy as a Horse.
In other words, the weight of a Horse is 0.00067 times 635,000,000 grams.(Equus ferus caballus) (Arabian, adult)
n Arabian riding horse (or similar breed) weighs between 420,000 grams. During races, horses must carry jockeys and their equipment, which in the Kentucky Derby, for example, can weigh up to 54,000 grams.
It's about 2,500 times as heavy as a Pig.
In other words, the weight of a Pig is 0.0004 times 635,000,000 grams.(Domestic pig, Sus scrofa domesticus, a.k.a. S. domesticus) (adult)
Domestic pigs weigh between 250,000 grams. The titular character "Babe the pig" in the 1995 family film was played by 48 different American Yorkshire piglets due to the length of filming and the rate at which piglets reach adulthood.
It's about 3,000 times as heavy as a cubic meter of Snow.
In other words, 635,000,000 grams is 2,800 times the weight of a cubic meter of Snow, and the weight of a cubic meter of Snow is 0.00036 times that amount.(Freshly fallen, standard conditions; measurements taken in Norway, 1965-68)
One cubic meter of freshly fallen snow under standard conditions weighs an average of 230,000 grams. Assembled in 2008, the world record largest snowman was constructed of 5,900,000,000 grams of snow and stood 37.21 m (122.1 ft) tall.
It's about 3,000 times as heavy as The Heart of a Blue Whale.
In other words, 635,000,000 grams is 3,200 times the weight of The Heart of a Blue Whale, and the weight of The Heart of a Blue Whale is 0.00031 times that amount.(Balaenoptera musculus) (adult)
(for a 2014 specimen)
The heart of a blue whale weighs about 200,000 grams. These hearts pump an estimated 7,100 L (1,875 gal) of blood through the whale's massive body.