27645072684 has 24 divisors (see below), whose sum is σ = 64878036720. Its totient is φ = 9161757504.

The previous prime is 27645072677. The next prime is 27645072727. The reversal of 27645072684 is 48627054672.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6656179 + ... + 6660330.

It is an arithmetic number, because the mean of its divisors is an integer number (2703251530).

Almost surely, 2^27645072684 is an apocalyptic number.

It is an amenable number.

27645072684 is an abundant number, since it is smaller than the sum of its proper divisors (37232964036).

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

27645072684 is a wasteful number, since it uses less digits than its factorization.

27645072684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13316689 (or 13316687 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 51.

The spelling of 27645072684 in words is "twenty-seven billion, six hundred forty-five million, seventy-two thousand, six hundred eighty-four".