108157642887 has 32 divisors (see below), whose sum is σ = 165205324800. Its totient is φ = 61656933888.

The previous prime is 108157642787. The next prime is 108157642907. The reversal of 108157642887 is 788246751801.

It is not a de Polignac number, because 108157642887 - 2⁷ = 108157642759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108157642487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17005414 + ... + 17011772.

It is an arithmetic number, because the mean of its divisors is an integer number (5162666400).

Almost surely, 2^108157642887 is an apocalyptic number.

108157642887 is a deficient number, since it is larger than the sum of its proper divisors (57047681913).

108157642887 is an equidigital number, since it uses as much as digits as its factorization.

108157642887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8175.

The product of its (nonzero) digits is 6021120, while the sum is 57.

The spelling of 108157642887 in words is "one hundred eight billion, one hundred fifty-seven million, six hundred forty-two thousand, eight hundred eighty-seven".