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Is 475 decades as long as Pius IX's reign?

It's about 150 times as long as Pius IX's reign
The length of Pius IX's reign is about 3.1650 decades.
(a.k.a. Pope Blessed Pius IX, a.k.a. Giovanni Maria Mastai-Ferretti) (1792-1878)
The longest reigning Pope in the Church's history, Pius IX reigned from June 16th, 1846 to February 7th, 1878 — 3.1650 decades. As the last monarchical Pope, he ruled over 3,000,000 subjects in the Papal States until 1870.
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