56317943659 has 2 divisors, whose sum is σ = 56317943660. Its totient is φ = 56317943658.

The previous prime is 56317943623. The next prime is 56317943707. The reversal of 56317943659 is 95634971365.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56317943659 - 2²⁷ = 56183725931 is a prime.

It is not a weakly prime, because it can be changed into another prime (56317943609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28158971829 + 28158971830.

It is an arithmetic number, because the mean of its divisors is an integer number (28158971830).

Almost surely, 2^56317943659 is an apocalyptic number.

56317943659 is a deficient number, since it is larger than the sum of its proper divisors (1).

56317943659 is an equidigital number, since it uses as much as digits as its factorization.

56317943659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18370800, while the sum is 58.

The spelling of 56317943659 in words is "fifty-six billion, three hundred seventeen million, nine hundred forty-three thousand, six hundred fifty-nine".