5113656891 has 72 divisors (see below), whose sum is σ = 8823353760. Its totient is φ = 2793263616.

The previous prime is 5113656887. The next prime is 5113656923. The reversal of 5113656891 is 1986563115.

5113656891 is a `hidden beast` number, since 51 + 1 + 36 + 568 + 9 + 1 = 666.

It is not a de Polignac number, because 5113656891 - 2² = 5113656887 is a prime.

It is a super-2 number, since 2×5113656891² = 52298973597743571762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5113656811) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 32570985 + ... + 32571141.

It is an arithmetic number, because the mean of its divisors is an integer number (122546580).

Almost surely, 2^5113656891 is an apocalyptic number.

5113656891 is a deficient number, since it is larger than the sum of its proper divisors (3709696869).

5113656891 is a wasteful number, since it uses less digits than its factorization.

5113656891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 293 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 5113656891 is about 71509.8377218128. The cubic root of 5113656891 is about 1722.8356967425.

The spelling of 5113656891 in words is "five billion, one hundred thirteen million, six hundred fifty-six thousand, eight hundred ninety-one".