86172455912 has 16 divisors (see below), whose sum is σ = 161586727200. Its totient is φ = 43082662000.

The previous prime is 86172455903. The next prime is 86172455927. The reversal of 86172455912 is 21955427168.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341612 + ... + 537627.

It is an arithmetic number, because the mean of its divisors is an integer number (10099170450).

Almost surely, 2^86172455912 is an apocalyptic number.

It is an amenable number.

86172455912 is a deficient number, since it is larger than the sum of its proper divisors (75414271288).

86172455912 is a wasteful number, since it uses less digits than its factorization.

86172455912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891496 (or 891492 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 50.

The spelling of 86172455912 in words is "eighty-six billion, one hundred seventy-two million, four hundred fifty-five thousand, nine hundred twelve".