56857075865 has 8 divisors (see below), whose sum is σ = 68229770688. Its totient is φ = 45484807600.

The previous prime is 56857075853. The next prime is 56857075879.

56857075865 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56857075865 - 2⁶ = 56857075801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56857075798 and 56857075807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478844 + ... + 585666.

It is an arithmetic number, because the mean of its divisors is an integer number (8528721336).

Almost surely, 2^56857075865 is an apocalyptic number.

It is an amenable number.

56857075865 is a deficient number, since it is larger than the sum of its proper divisors (11372694823).

56857075865 is a wasteful number, since it uses less digits than its factorization.

56857075865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213279.

The product of its (nonzero) digits is 70560000, while the sum is 62.

The spelling of 56857075865 in words is "fifty-six billion, eight hundred fifty-seven million, seventy-five thousand, eight hundred sixty-five".