27728508914 has 32 divisors (see below), whose sum is σ = 44559883200. Its totient is φ = 12938089824.

The previous prime is 27728508911. The next prime is 27728508919. The reversal of 27728508914 is 41980582772.

It is not an unprimeable number, because it can be changed into a prime (27728508911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904022 + ... + 934190.

It is an arithmetic number, because the mean of its divisors is an integer number (1392496350).

Almost surely, 2^27728508914 is an apocalyptic number.

27728508914 is a deficient number, since it is larger than the sum of its proper divisors (16831374286).

27728508914 is an equidigital number, since it uses as much as digits as its factorization.

27728508914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30295 (or 30257 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 27728508914 in words is "twenty-seven billion, seven hundred twenty-eight million, five hundred eight thousand, nine hundred fourteen".