31872990095 has 4 divisors (see below), whose sum is σ = 38247588120. Its totient is φ = 25498392072.

The previous prime is 31872990011. The next prime is 31872990133. The reversal of 31872990095 is 59009927813.

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 31872990095 - 2³² = 27578022799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3187299005 + ... + 3187299014.

It is an arithmetic number, because the mean of its divisors is an integer number (9561897030).

Almost surely, 2^31872990095 is an apocalyptic number.

31872990095 is a deficient number, since it is larger than the sum of its proper divisors (6374598025).

31872990095 is an equidigital number, since it uses as much as digits as its factorization.

31872990095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374598024.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The spelling of 31872990095 in words is "thirty-one billion, eight hundred seventy-two million, nine hundred ninety thousand, ninety-five".