85631631024 has 40 divisors (see below), whose sum is σ = 221236103872. Its totient is φ = 28541160000.

The previous prime is 85631630989. The next prime is 85631631067. The reversal of 85631631024 is 42013613658.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460767 + ... + 619329.

Almost surely, 2^85631631024 is an apocalyptic number.

It is an amenable number.

85631631024 is an abundant number, since it is smaller than the sum of its proper divisors (135604472848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85631631024 is a wasteful number, since it uses less digits than its factorization.

85631631024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169825 (or 169819 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 85631631024 in words is "eighty-five billion, six hundred thirty-one million, six hundred thirty-one thousand, twenty-four".