86217258572 has 24 divisors (see below), whose sum is σ = 152059057920. Its totient is φ = 42771931280.

The previous prime is 86217258563. The next prime is 86217258587. The reversal of 86217258572 is 27585271268.

It is a super-2 number, since 2×86217258572² (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, 3950033 + ... + 3971799.

It is an arithmetic number, because the mean of its divisors is an integer number (6335794080).

Almost surely, 2^86217258572 is an apocalyptic number.

It is an amenable number.

86217258572 is a deficient number, since it is larger than the sum of its proper divisors (65841799348).

86217258572 is a wasteful number, since it uses less digits than its factorization.

86217258572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29461 (or 29459 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 53.

The spelling of 86217258572 in words is "eighty-six billion, two hundred seventeen million, two hundred fifty-eight thousand, five hundred seventy-two".