27715440393 has 12 divisors (see below), whose sum is σ = 40711947120. Its totient is φ = 18163791096.

The previous prime is 27715440373. The next prime is 27715440397. The reversal of 27715440393 is 39304451772.

27715440393 is a `hidden beast` number, since 2 + 7 + 7 + 154 + 403 + 93 = 666.

It is not a de Polignac number, because 27715440393 - 2¹² = 27715436297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27715440397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26096871 + ... + 26097932.

It is an arithmetic number, because the mean of its divisors is an integer number (3392662260).

Almost surely, 2^27715440393 is an apocalyptic number.

It is an amenable number.

27715440393 is a deficient number, since it is larger than the sum of its proper divisors (12996506727).

27715440393 is a wasteful number, since it uses less digits than its factorization.

27715440393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52194868 (or 52194865 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 27715440393 in words is "twenty-seven billion, seven hundred fifteen million, four hundred forty thousand, three hundred ninety-three".