27918399744 has 135 divisors (see below), whose sum is σ = 81883484683. Its totient is φ = 9148402176.

The previous prime is 27918399679. The next prime is 27918399757. The reversal of 27918399744 is 44799381972.

The square root of 27918399744 is 167088.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

Its product of digits (27433728) is a multiple of the sum of its prime divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 473193187 + ... + 473193245.

Almost surely, 2^27918399744 is an apocalyptic number.

27918399744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

27918399744 is the 167088-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27918399744

27918399744 is an abundant number, since it is smaller than the sum of its proper divisors (53965084939).

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

27918399744 is an frugal number, since it uses more digits than its factorization.

27918399744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 64 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 27918399744 in words is "twenty-seven billion, nine hundred eighteen million, three hundred ninety-nine thousand, seven hundred forty-four".