85690591908 has 48 divisors (see below), whose sum is σ = 202162773120. Its totient is φ = 28247122944.

The previous prime is 85690591897. The next prime is 85690591957. The reversal of 85690591908 is 80919509658.

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, 1507410 + ... + 1563222.

It is an arithmetic number, because the mean of its divisors is an integer number (4211724440).

Almost surely, 2^85690591908 is an apocalyptic number.

It is an amenable number.

85690591908 is an abundant number, since it is smaller than the sum of its proper divisors (116472181212).

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

85690591908 is a wasteful number, since it uses less digits than its factorization.

85690591908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57236 (or 57234 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 60.

The spelling of 85690591908 in words is "eighty-five billion, six hundred ninety million, five hundred ninety-one thousand, nine hundred eight".