85177205808 has 40 divisors (see below), whose sum is σ = 231622228800. Its totient is φ = 26898064704.

The previous prime is 85177205801. The next prime is 85177205819. The reversal of 85177205808 is 80850277158.

It is not an unprimeable number, because it can be changed into a prime (85177205801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46697118 + ... + 46698941.

It is an arithmetic number, because the mean of its divisors is an integer number (5790555720).

Almost surely, 2^85177205808 is an apocalyptic number.

It is an amenable number.

85177205808 is an abundant number, since it is smaller than the sum of its proper divisors (146445022992).

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

85177205808 is a wasteful number, since it uses less digits than its factorization.

85177205808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93396089 (or 93396083 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 51.

The spelling of 85177205808 in words is "eighty-five billion, one hundred seventy-seven million, two hundred five thousand, eight hundred eight".