108902331815 has 4 divisors (see below), whose sum is σ = 130682798184. Its totient is φ = 87121865448.

The previous prime is 108902331773. The next prime is 108902331847. The reversal of 108902331815 is 518133209801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 108902331815 - 2¹² = 108902327719 is a prime.

It is a super-2 number, since 2×108902331815² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10890233177 + ... + 10890233186.

It is an arithmetic number, because the mean of its divisors is an integer number (32670699546).

Almost surely, 2^108902331815 is an apocalyptic number.

108902331815 is a deficient number, since it is larger than the sum of its proper divisors (21780466369).

108902331815 is an equidigital number, since it uses as much as digits as its factorization.

108902331815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21780466368.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 108902331815 in words is "one hundred eight billion, nine hundred two million, three hundred thirty-one thousand, eight hundred fifteen".