86700639231 has 24 divisors (see below), whose sum is σ = 126736623104. Its totient is φ = 57109017600.

The previous prime is 86700639211. The next prime is 86700639257. The reversal of 86700639231 is 13293600768.

86700639231 is a `hidden beast` number, since 8 + 6 + 7 + 0 + 0 + 639 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 86700639231 - 2⁹ = 86700638719 is a prime.

It is a super-2 number, since 2×86700639231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86700639211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442050 + ... + 607296.

Almost surely, 2^86700639231 is an apocalyptic number.

86700639231 is a deficient number, since it is larger than the sum of its proper divisors (40035983873).

86700639231 is a wasteful number, since it uses less digits than its factorization.

86700639231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165951 (or 165948 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 86700639231 in words is "eighty-six billion, seven hundred million, six hundred thirty-nine thousand, two hundred thirty-one".