Perfect Square
81214295342911989489 is a perfect square (9011897433 × 9011897433)
81214295342911989489 is a perfect square (9011897433 × 9011897433)
81214295342911989489 is odd
Previous odd number is 81214295342911989487
Next odd number is 81214295342911989491
1000110011100010011001000110101001010010101111011100010011011110001
535670144241553772300883749390154835806483082438331788937169