Perfect Square
47991489206020801 is a perfect square (219069599 × 219069599)
47991489206020801 is a perfect square (219069599 × 219069599)
10101010 10000000 00000001 01010010 01011101 11101010 11000001
47991489206020801 is odd
Previous odd number is 47991489206020799
Next odd number is 47991489206020803