Perfect Square
1819440431945523815136921 is a perfect square (1348866350661 × 1348866350661)
1819440431945523815136921 is a perfect square (1348866350661 × 1348866350661)
1819440431945523815136921 is odd
Previous odd number is 1819440431945523815136919
Next odd number is 1819440431945523815136923
110000001010010000001000000111110010101011110011011100100000100100011111010011001
6023009169769434759592500575336668210574970994205362379267990825556557961