5113630991 has 16 divisors (see below), whose sum is σ = 6355169856. Its totient is φ = 4013784576.

The previous prime is 5113630943. The next prime is 5113631021. The reversal of 5113630991 is 1990363115.

It is a cyclic number.

It is not a de Polignac number, because 5113630991 - 2¹⁸ = 5113368847 is a prime.

It is a super-2 number, since 2×5113630991² = 52298443824231284162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5113630091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 576296 + ... + 585101.

It is an arithmetic number, because the mean of its divisors is an integer number (397198116).

Almost surely, 2^5113630991 is an apocalyptic number.

5113630991 is a deficient number, since it is larger than the sum of its proper divisors (1241538865).

5113630991 is a wasteful number, since it uses less digits than its factorization.

5113630991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161458.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 5113630991 is about 71509.6566276192. The cubic root of 5113630991 is about 1722.8327880922.

The spelling of 5113630991 in words is "five billion, one hundred thirteen million, six hundred thirty thousand, nine hundred ninety-one".