Perfect Square
1000000000000000000000000000000000000000000000000 is a perfect square (1000000000000000000000000 × 1000000000000000000000000)
1000000000000000000000000000000000000000000000000 is a perfect square (1000000000000000000000000 × 1000000000000000000000000)
10101111 00101001 10001101 00000101 00001110 01000011 10010101 11010110 10010110 01110000 10110001 00101011 01111111 01000001 00000000 00000000 00000000 00000000 00000000 00000000
1000000000000000000000000000000000000000000000000 is even
Previous even number is 999999999999999999999999999999999999999999999998
Next even number is 1000000000000000000000000000000000000000000000002
1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000