86905860804 has 81 divisors (see below), whose sum is σ = 255581027247. Its totient is φ = 24826708368.

The previous prime is 86905860799. The next prime is 86905860817. The reversal of 86905860804 is 40806850968.

It is a happy number.

The square root of 86905860804 is 294798.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12378007 + ... + 12385025.

Almost surely, 2^86905860804 is an apocalyptic number.

86905860804 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

86905860804 is the 294798-th square number.

It is an amenable number.

86905860804 is an abundant number, since it is smaller than the sum of its proper divisors (168675166443).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86905860804 is an equidigital number, since it uses as much as digits as its factorization.

86905860804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14062 (or 7031 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 86905860804 in words is "eighty-six billion, nine hundred five million, eight hundred sixty thousand, eight hundred four".