Perfect Square
27803563419206767888609 is a perfect square (166744005647 × 166744005647)
27803563419206767888609 is a perfect square (166744005647 × 166744005647)
27803563419206767888609 is odd
Previous odd number is 27803563419206767888607
Next odd number is 27803563419206767888611
101111000110011101111110100000101000010110100011000100101000100100011100001
21493214917754090986708863752655688791591243722203773527369321850529