27568132644 has 24 divisors (see below), whose sum is σ = 69273769600. Its totient is φ = 8482502304.

The previous prime is 27568132601. The next prime is 27568132651. The reversal of 27568132644 is 44623186572.

It is a junction number, because it is equal to n+sod(n) for n = 27568132593 and 27568132602.

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, 88359244 + ... + 88359555.

Almost surely, 2^27568132644 is an apocalyptic number.

It is an amenable number.

27568132644 is an abundant number, since it is smaller than the sum of its proper divisors (41705636956).

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

27568132644 is a wasteful number, since it uses less digits than its factorization.

27568132644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176718819 (or 176718817 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 48.

The spelling of 27568132644 in words is "twenty-seven billion, five hundred sixty-eight million, one hundred thirty-two thousand, six hundred forty-four".