86712564172 has 24 divisors (see below), whose sum is σ = 164947131216. Its totient is φ = 39647151168.

The previous prime is 86712564163. The next prime is 86712564179. The reversal of 86712564172 is 27146521768.

It is not an unprimeable number, because it can be changed into a prime (86712564179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7786723 + ... + 7797850.

It is an arithmetic number, because the mean of its divisors is an integer number (6872797134).

Almost surely, 2^86712564172 is an apocalyptic number.

It is an amenable number.

86712564172 is a deficient number, since it is larger than the sum of its proper divisors (78234567044).

86712564172 is a wasteful number, since it uses less digits than its factorization.

86712564172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15584697 (or 15584695 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 49.

The spelling of 86712564172 in words is "eighty-six billion, seven hundred twelve million, five hundred sixty-four thousand, one hundred seventy-two".