27157605507 has 32 divisors (see below), whose sum is σ = 40379955200. Its totient is φ = 18039301344.

The previous prime is 27157605487. The next prime is 27157605509. The reversal of 27157605507 is 70550675172.

It is a happy number.

27157605507 is a `hidden beast` number, since 2 + 71 + 5 + 76 + 0 + 5 + 507 = 666.

It is not a de Polignac number, because 27157605507 - 2⁶ = 27157605443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27157605509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10143453 + ... + 10146129.

It is an arithmetic number, because the mean of its divisors is an integer number (1261873600).

Almost surely, 2^27157605507 is an apocalyptic number.

27157605507 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

27157605507 is a deficient number, since it is larger than the sum of its proper divisors (13222349693).

27157605507 is a wasteful number, since it uses less digits than its factorization.

27157605507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912 (or 3906 counting only the distinct ones).

The product of its (nonzero) digits is 514500, while the sum is 45.

The spelling of 27157605507 in words is "twenty-seven billion, one hundred fifty-seven million, six hundred five thousand, five hundred seven".