68040498737 has 2 divisors, whose sum is σ = 68040498738. Its totient is φ = 68040498736.

The previous prime is 68040498661. The next prime is 68040498751. The reversal of 68040498737 is 73789404086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66469089856 + 1571408881 = 257816^2 + 39641^2 .

It is a cyclic number.

It is not a de Polignac number, because 68040498737 - 2¹⁴ = 68040482353 is a prime.

It is not a weakly prime, because it can be changed into another prime (68040498797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34020249368 + 34020249369.

It is an arithmetic number, because the mean of its divisors is an integer number (34020249369).

Almost surely, 2^68040498737 is an apocalyptic number.

It is an amenable number.

68040498737 is a deficient number, since it is larger than the sum of its proper divisors (1).

68040498737 is an equidigital number, since it uses as much as digits as its factorization.

68040498737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 68040498737 in words is "sixty-eight billion, forty million, four hundred ninety-eight thousand, seven hundred thirty-seven".