86581074516 has 24 divisors (see below), whose sum is σ = 203232227520. Its totient is φ = 28687540992.

The previous prime is 86581074493. The next prime is 86581074529. The reversal of 86581074516 is 61547018568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21600061 + ... + 21604068.

It is an arithmetic number, because the mean of its divisors is an integer number (8468009480).

Almost surely, 2^86581074516 is an apocalyptic number.

It is an amenable number.

86581074516 is an abundant number, since it is smaller than the sum of its proper divisors (116651153004).

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

86581074516 is a wasteful number, since it uses less digits than its factorization.

86581074516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43204303 (or 43204301 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 86581074516 in words is "eighty-six billion, five hundred eighty-one million, seventy-four thousand, five hundred sixteen".