85831579164 has 48 divisors (see below), whose sum is σ = 204581357568. Its totient is φ = 27995421888.

The previous prime is 85831579079. The next prime is 85831579181. The reversal of 85831579164 is 46197513858.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2899462 + ... + 2928914.

It is an arithmetic number, because the mean of its divisors is an integer number (4262111616).

Almost surely, 2^85831579164 is an apocalyptic number.

It is an amenable number.

85831579164 is an abundant number, since it is smaller than the sum of its proper divisors (118749778404).

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

85831579164 is a wasteful number, since it uses less digits than its factorization.

85831579164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34674 (or 34672 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 57.

The spelling of 85831579164 in words is "eighty-five billion, eight hundred thirty-one million, five hundred seventy-nine thousand, one hundred sixty-four".