86512586181 has 16 divisors (see below), whose sum is σ = 134633570304. Its totient is φ = 48383938224.

The previous prime is 86512586129. The next prime is 86512586189. The reversal of 86512586181 is 18168521568.

It is not a de Polignac number, because 86512586181 - 2⁷ = 86512586053 is a prime.

It is a super-2 number, since 2×86512586181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86512586189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43825045 + ... + 43827018.

It is an arithmetic number, because the mean of its divisors is an integer number (8414598144).

Almost surely, 2^86512586181 is an apocalyptic number.

It is an amenable number.

86512586181 is a deficient number, since it is larger than the sum of its proper divisors (48120984123).

86512586181 is a wasteful number, since it uses less digits than its factorization.

86512586181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87652120.

The product of its digits is 921600, while the sum is 51.

The spelling of 86512586181 in words is "eighty-six billion, five hundred twelve million, five hundred eighty-six thousand, one hundred eighty-one".