86172520522 has 16 divisors (see below), whose sum is σ = 141017167872. Its totient is φ = 39167219520.

The previous prime is 86172520519. The next prime is 86172520543. The reversal of 86172520522 is 22502527168.

It is a super-2 number, since 2×86172520522² (a number of 23 digits) contains 22 as substring.

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, 357943 + ... + 548149.

It is an arithmetic number, because the mean of its divisors is an integer number (8813572992).

Almost surely, 2^86172520522 is an apocalyptic number.

86172520522 is a deficient number, since it is larger than the sum of its proper divisors (54844647350).

86172520522 is a wasteful number, since it uses less digits than its factorization.

86172520522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210813.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 86172520522 in words is "eighty-six billion, one hundred seventy-two million, five hundred twenty thousand, five hundred twenty-two".