86247701631 has 96 divisors (see below), whose sum is σ = 159695198208. Its totient is φ = 43639223040.

The previous prime is 86247701569. The next prime is 86247701651. The reversal of 86247701631 is 13610774268.

86247701631 is a `hidden beast` number, since 8 + 6 + 2 + 4 + 7 + 7 + 0 + 1 + 631 = 666.

It is not a de Polignac number, because 86247701631 - 2¹⁴ = 86247685247 is a prime.

It is a super-2 number, since 2×86247701631² (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 (86247701651) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2131470 + ... + 2171556.

It is an arithmetic number, because the mean of its divisors is an integer number (1663491648).

Almost surely, 2^86247701631 is an apocalyptic number.

86247701631 is a deficient number, since it is larger than the sum of its proper divisors (73447496577).

86247701631 is a wasteful number, since it uses less digits than its factorization.

86247701631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40221 (or 40218 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 86247701631 in words is "eighty-six billion, two hundred forty-seven million, seven hundred one thousand, six hundred thirty-one".