56926638137 has 2 divisors, whose sum is σ = 56926638138. Its totient is φ = 56926638136.

The previous prime is 56926638089. The next prime is 56926638161. The reversal of 56926638137 is 73183662965.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55750765456 + 1175872681 = 236116^2 + 34291^2 .

It is a cyclic number.

It is not a de Polignac number, because 56926638137 - 2¹⁰ = 56926637113 is a prime.

It is not a weakly prime, because it can be changed into another prime (56926632137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28463319068 + 28463319069.

It is an arithmetic number, because the mean of its divisors is an integer number (28463319069).

Almost surely, 2^56926638137 is an apocalyptic number.

It is an amenable number.

56926638137 is a deficient number, since it is larger than the sum of its proper divisors (1).

56926638137 is an equidigital number, since it uses as much as digits as its factorization.

56926638137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 56.

The spelling of 56926638137 in words is "fifty-six billion, nine hundred twenty-six million, six hundred thirty-eight thousand, one hundred thirty-seven".