Perfect Square
63897827227002945801 is a perfect square (7993611651 × 7993611651)
63897827227002945801 is a perfect square (7993611651 × 7993611651)
63897827227002945801 is odd
Previous odd number is 63897827227002945799
Next odd number is 63897827227002945803
110111011011000010101011110101000101011000110010110100000100001001
260890504239706514058661889356318209820585101006854133757401