27115862464 has 28 divisors (see below), whose sum is σ = 56640044200. Its totient is φ = 12844355328.

The previous prime is 27115862447. The next prime is 27115862507. The reversal of 27115862464 is 46426851172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11148399 + ... + 11150830.

Almost surely, 2^27115862464 is an apocalyptic number.

It is an amenable number.

27115862464 is an abundant number, since it is smaller than the sum of its proper divisors (29524181736).

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

27115862464 is a wasteful number, since it uses less digits than its factorization.

27115862464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22299260 (or 22299250 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The spelling of 27115862464 in words is "twenty-seven billion, one hundred fifteen million, eight hundred sixty-two thousand, four hundred sixty-four".