85642825164 has 48 divisors (see below), whose sum is σ = 217335830880. Its totient is φ = 26090726400.

The previous prime is 85642825157. The next prime is 85642825171. The reversal of 85642825164 is 46152824658.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85642825157) and next prime (85642825171).

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, 2702029 + ... + 2733540.

It is an arithmetic number, because the mean of its divisors is an integer number (4527829810).

Almost surely, 2^85642825164 is an apocalyptic number.

It is an amenable number.

85642825164 is an abundant number, since it is smaller than the sum of its proper divisors (131693005716).

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

85642825164 is a wasteful number, since it uses less digits than its factorization.

85642825164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435690 (or 5435688 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 51.

The spelling of 85642825164 in words is "eighty-five billion, six hundred forty-two million, eight hundred twenty-five thousand, one hundred sixty-four".