5531979687 has 16 divisors (see below), whose sum is σ = 8061916800. Its totient is φ = 3353483232.

The previous prime is 5531979647. The next prime is 5531979847. The reversal of 5531979687 is 7869791355.

It is not a de Polignac number, because 5531979687 - 2⁷ = 5531979559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5531979687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5531979617) 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, 1055937 + ... + 1061162.

It is an arithmetic number, because the mean of its divisors is an integer number (503869800).

Almost surely, 2^5531979687 is an apocalyptic number.

5531979687 is a deficient number, since it is larger than the sum of its proper divisors (2529937113).

5531979687 is a wasteful number, since it uses less digits than its factorization.

5531979687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117182.

The product of its digits is 14288400, while the sum is 60.

The square root of 5531979687 is about 74377.2793734753. The cubic root of 5531979687 is about 1768.5887531596.

The spelling of 5531979687 in words is "five billion, five hundred thirty-one million, nine hundred seventy-nine thousand, six hundred eighty-seven".