27390427968 has 56 divisors (see below), whose sum is σ = 76284754720. Its totient is φ = 8649607680.

The previous prime is 27390427957. The next prime is 27390427973. The reversal of 27390427968 is 86972409372.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

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, 3750523 + ... + 3757818.

Almost surely, 2^27390427968 is an apocalyptic number.

It is an amenable number.

27390427968 is an abundant number, since it is smaller than the sum of its proper divisors (48894326752).

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

27390427968 is a wasteful number, since it uses less digits than its factorization.

27390427968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7508375 (or 7508365 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 57.

The spelling of 27390427968 in words is "twenty-seven billion, three hundred ninety million, four hundred twenty-seven thousand, nine hundred sixty-eight".