11536879831 has 8 divisors (see below), whose sum is σ = 11894801040. Its totient is φ = 11181385728.

The previous prime is 11536879817. The next prime is 11536879841. The reversal of 11536879831 is 13897863511.

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

It is a cyclic number.

It is not a de Polignac number, because 11536879831 - 2⁵ = 11536879799 is a prime.

It is a super-2 number, since 2×11536879831² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11536879811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597121 + ... + 616138.

It is an arithmetic number, because the mean of its divisors is an integer number (1486850130).

Almost surely, 2^11536879831 is an apocalyptic number.

11536879831 is a deficient number, since it is larger than the sum of its proper divisors (357921209).

11536879831 is a wasteful number, since it uses less digits than its factorization.

11536879831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213553.

The product of its digits is 1088640, while the sum is 52.

The spelling of 11536879831 in words is "eleven billion, five hundred thirty-six million, eight hundred seventy-nine thousand, eight hundred thirty-one".