27885865113 has 32 divisors (see below), whose sum is σ = 43172659200. Its totient is φ = 17771857488.

The previous prime is 27885865099. The next prime is 27885865127. The reversal of 27885865113 is 31156858872.

27885865113 is a `hidden beast` number, since 2 + 7 + 8 + 8 + 586 + 51 + 1 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (27885865099) and next prime (27885865127).

It is not a de Polignac number, because 27885865113 - 2⁴ = 27885865097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27885865113.

It is not an unprimeable number, because it can be changed into a prime (27885865613) 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, 200953 + ... + 310086.

It is an arithmetic number, because the mean of its divisors is an integer number (1349145600).

Almost surely, 2^27885865113 is an apocalyptic number.

It is an amenable number.

27885865113 is a deficient number, since it is larger than the sum of its proper divisors (15286794087).

27885865113 is a wasteful number, since it uses less digits than its factorization.

27885865113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511138 (or 511132 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 54.

The spelling of 27885865113 in words is "twenty-seven billion, eight hundred eighty-five million, eight hundred sixty-five thousand, one hundred thirteen".