56873018831 has 16 divisors (see below), whose sum is σ = 59088905568. Its totient is φ = 54705456000.

The previous prime is 56873018821. The next prime is 56873018861. The reversal of 56873018831 is 13881037865.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56873018831 is a prime.

It is a super-2 number, since 2×56873018831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56873018831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56873018821) 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 in 15 ways as a sum of consecutive naturals, for example, 963881 + ... + 1021181.

It is an arithmetic number, because the mean of its divisors is an integer number (3693056598).

Almost surely, 2^56873018831 is an apocalyptic number.

56873018831 is a deficient number, since it is larger than the sum of its proper divisors (2215886737).

56873018831 is a wasteful number, since it uses less digits than its factorization.

56873018831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57722.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 56873018831 in words is "fifty-six billion, eight hundred seventy-three million, eighteen thousand, eight hundred thirty-one".