27137257128 has 96 divisors (see below), whose sum is σ = 73940106240. Its totient is φ = 8991319680.

The previous prime is 27137257117. The next prime is 27137257141. The reversal of 27137257128 is 82175273172.

27137257128 is a `hidden beast` number, since 2 + 7 + 1 + 3 + 72 + 571 + 2 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19764250 + ... + 19765622.

It is an arithmetic number, because the mean of its divisors is an integer number (770209440).

Almost surely, 2^27137257128 is an apocalyptic number.

It is an amenable number.

27137257128 is an abundant number, since it is smaller than the sum of its proper divisors (46802849112).

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

27137257128 is a wasteful number, since it uses less digits than its factorization.

27137257128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839 (or 2832 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The spelling of 27137257128 in words is "twenty-seven billion, one hundred thirty-seven million, two hundred fifty-seven thousand, one hundred twenty-eight".