Perfect Square
81534050064084274945561 is a perfect square (285541678331 × 285541678331)
81534050064084274945561 is a perfect square (285541678331 × 285541678331)
81534050064084274945561 is odd
Previous odd number is 81534050064084274945559
Next odd number is 81534050064084274945563
10001010000111111100000111110111100110101111110010010011011101001111000011001
542022165628947486815161435115681471424998122808638281509251147593481