85023881916 has 24 divisors (see below), whose sum is σ = 199652686800. Its totient is φ = 28160775552.

The previous prime is 85023881893. The next prime is 85023881947. The reversal of 85023881916 is 61918832058.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22562841 + ... + 22566608.

It is an arithmetic number, because the mean of its divisors is an integer number (8318861950).

Almost surely, 2^85023881916 is an apocalyptic number.

It is an amenable number.

85023881916 is an abundant number, since it is smaller than the sum of its proper divisors (114628804884).

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

85023881916 is a wasteful number, since it uses less digits than its factorization.

85023881916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45129613 (or 45129611 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 85023881916 in words is "eighty-five billion, twenty-three million, eight hundred eighty-one thousand, nine hundred sixteen".