27685912608 has 36 divisors (see below), whose sum is σ = 78731814798. Its totient is φ = 9228637440.

The previous prime is 27685912603. The next prime is 27685912609. The reversal of 27685912608 is 80621958672.

27685912608 is a `hidden beast` number, since 27 + 6 + 8 + 5 + 9 + 1 + 2 + 608 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14167664784 + 13518247824 = 119028^2 + 116268^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (27685912603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48065533 + ... + 48066108.

Almost surely, 2^27685912608 is an apocalyptic number.

It is an amenable number.

27685912608 is an abundant number, since it is smaller than the sum of its proper divisors (51045902190).

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

27685912608 is a wasteful number, since it uses less digits than its factorization.

27685912608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96131657 (or 96131646 counting only the distinct ones).

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

The spelling of 27685912608 in words is "twenty-seven billion, six hundred eighty-five million, nine hundred twelve thousand, six hundred eight".