85692172068 has 54 divisors (see below), whose sum is σ = 229371962274. Its totient is φ = 26881546752.

The previous prime is 85692172039. The next prime is 85692172079. The reversal of 85692172068 is 86027129658.

85692172068 is a `hidden beast` number, since 8 + 569 + 2 + 1 + 72 + 0 + 6 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 67097577024 + 18594595044 = 259032^2 + 136362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7235880 + ... + 7247712.

It is an arithmetic number, because the mean of its divisors is an integer number (4247628931).

Almost surely, 2^85692172068 is an apocalyptic number.

It is an amenable number.

85692172068 is an abundant number, since it is smaller than the sum of its proper divisors (143679790206).

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

85692172068 is a wasteful number, since it uses less digits than its factorization.

85692172068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23693 (or 11855 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 85692172068 in words is "eighty-five billion, six hundred ninety-two million, one hundred seventy-two thousand, sixty-eight".