27212657131 has 16 divisors (see below), whose sum is σ = 30141946368. Its totient is φ = 24360134400.

The previous prime is 27212657111. The next prime is 27212657141. The reversal of 27212657131 is 13175621272.

It is a cyclic number.

It is not a de Polignac number, because 27212657131 - 2⁵ = 27212657099 is a prime.

It is a super-2 number, since 2×27212657131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27212657111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621595 + ... + 663931.

It is an arithmetic number, because the mean of its divisors is an integer number (1883871648).

Almost surely, 2^27212657131 is an apocalyptic number.

27212657131 is a deficient number, since it is larger than the sum of its proper divisors (2929289237).

27212657131 is a wasteful number, since it uses less digits than its factorization.

27212657131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43242.

The product of its digits is 35280, while the sum is 37.

The spelling of 27212657131 in words is "twenty-seven billion, two hundred twelve million, six hundred fifty-seven thousand, one hundred thirty-one".