Perfect Square
6398144738688974499995170639984003188853691466321 is a perfect square (2529455423344909334042889 × 2529455423344909334042889)
6398144738688974499995170639984003188853691466321 is a perfect square (2529455423344909334042889 × 2529455423344909334042889)
6398144738688974499995170639984003188853691466321 is odd
Previous odd number is 6398144738688974499995170639984003188853691466319
Next odd number is 6398144738688974499995170639984003188853691466323
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