85517315708 has 24 divisors (see below), whose sum is σ = 167242292784. Its totient is φ = 37923420800.

The previous prime is 85517315677. The next prime is 85517315713. The reversal of 85517315708 is 80751371558.

It is a super-2 number, since 2×85517315708² (a number of 23 digits) contains 22 as substring.

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, 23700335 + ... + 23703942.

It is an arithmetic number, because the mean of its divisors is an integer number (6968428866).

Almost surely, 2^85517315708 is an apocalyptic number.

It is an amenable number.

85517315708 is a deficient number, since it is larger than the sum of its proper divisors (81724977076).

85517315708 is a wasteful number, since it uses less digits than its factorization.

85517315708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47404333 (or 47404331 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 50.

The spelling of 85517315708 in words is "eighty-five billion, five hundred seventeen million, three hundred fifteen thousand, seven hundred eight".