85915315584 has 96 divisors (see below), whose sum is σ = 282548906640. Its totient is φ = 24547230720.

The previous prime is 85915315571. The next prime is 85915315621. The reversal of 85915315584 is 48551351958.

85915315584 is a `hidden beast` number, since 8 + 5 + 9 + 1 + 53 + 1 + 5 + 584 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×85915315584² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85915315584.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5319027 + ... + 5335154.

Almost surely, 2^85915315584 is an apocalyptic number.

85915315584 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

85915315584 is an abundant number, since it is smaller than the sum of its proper divisors (196633591056).

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

85915315584 is a wasteful number, since it uses less digits than its factorization.

85915315584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10654208 (or 10654193 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 54.

The spelling of 85915315584 in words is "eighty-five billion, nine hundred fifteen million, three hundred fifteen thousand, five hundred eighty-four".