27108466912818 has 48 divisors (see below), whose sum is σ = 63870823500120. Its totient is φ = 8274762551808.

The previous prime is 27108466912783. The next prime is 27108466912819. The reversal of 27108466912818 is 81821966480172.

27108466912818 is a `hidden beast` number, since 2 + 7 + 1 + 0 + 8 + 466 + 91 + 2 + 81 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25474500389529 + 1633966523289 = 5047227^2 + 1278267^2 .

It is a super-2 number, since 2×27108466912818² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27108466912819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1197147613 + ... + 1197170256.

Almost surely, 2^{27108466912818} is an apocalyptic number.

27108466912818 is an abundant number, since it is smaller than the sum of its proper divisors (36762356587302).

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

27108466912818 is a wasteful number, since it uses less digits than its factorization.

27108466912818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394317931 (or 2394317928 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The spelling of 27108466912818 in words is "twenty-seven trillion, one hundred eight billion, four hundred sixty-six million, nine hundred twelve thousand, eight hundred eighteen".