86931271424 has 18 divisors (see below), whose sum is σ = 173522968080. Its totient is φ = 43465635584.

The previous prime is 86931271409. The next prime is 86931271459. The reversal of 86931271424 is 42417213968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169787384 + ... + 169787895.

Almost surely, 2^86931271424 is an apocalyptic number.

It is an amenable number.

86931271424 is a deficient number, since it is larger than the sum of its proper divisors (86591696656).

86931271424 is an equidigital number, since it uses as much as digits as its factorization.

86931271424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339575295 (or 339575281 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The spelling of 86931271424 in words is "eighty-six billion, nine hundred thirty-one million, two hundred seventy-one thousand, four hundred twenty-four".