27645072688 has 10 divisors (see below), whose sum is σ = 53562328364. Its totient is φ = 13822536336.

The previous prime is 27645072677. The next prime is 27645072727. The reversal of 27645072688 is 88627054672.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 863908506 + ... + 863908537.

Almost surely, 2^27645072688 is an apocalyptic number.

It is an amenable number.

27645072688 is a deficient number, since it is larger than the sum of its proper divisors (25917255676).

27645072688 is a wasteful number, since it uses less digits than its factorization.

27645072688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727817051 (or 1727817045 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 55.

The spelling of 27645072688 in words is "twenty-seven billion, six hundred forty-five million, seventy-two thousand, six hundred eighty-eight".