86486261631 has 32 divisors (see below), whose sum is σ = 145794318336. Its totient is φ = 44295132000.

The previous prime is 86486261593. The next prime is 86486261689. The reversal of 86486261631 is 13616268468.

It is not a de Polignac number, because 86486261631 - 2¹¹ = 86486259583 is a prime.

It is a super-2 number, since 2×86486261631² (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 (86486261231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2620215 + ... + 2653016.

It is an arithmetic number, because the mean of its divisors is an integer number (4556072448).

Almost surely, 2^86486261631 is an apocalyptic number.

86486261631 is a deficient number, since it is larger than the sum of its proper divisors (59308056705).

86486261631 is a wasteful number, since it uses less digits than its factorization.

86486261631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273323.

The product of its digits is 1990656, while the sum is 51.

The spelling of 86486261631 in words is "eighty-six billion, four hundred eighty-six million, two hundred sixty-one thousand, six hundred thirty-one".