27899044664 has 64 divisors (see below), whose sum is σ = 53985869280. Its totient is φ = 13508352000.

The previous prime is 27899044639. The next prime is 27899044703. The reversal of 27899044664 is 46644099872.

It is a congruent number.

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, 33981374 + ... + 33982194.

Almost surely, 2^27899044664 is an apocalyptic number.

It is an amenable number.

27899044664 is a deficient number, since it is larger than the sum of its proper divisors (26086824616).

27899044664 is a wasteful number, since it uses less digits than its factorization.

27899044664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 59.

The spelling of 27899044664 in words is "twenty-seven billion, eight hundred ninety-nine million, forty-four thousand, six hundred sixty-four".