27118668571 has 2 divisors, whose sum is σ = 27118668572. Its totient is φ = 27118668570.

The previous prime is 27118668503. The next prime is 27118668613. The reversal of 27118668571 is 17586681172.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27118668571 - 2²⁵ = 27085114139 is a prime.

It is not a weakly prime, because it can be changed into another prime (27118668971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13559334285 + 13559334286.

It is an arithmetic number, because the mean of its divisors is an integer number (13559334286).

Almost surely, 2^27118668571 is an apocalyptic number.

27118668571 is a deficient number, since it is larger than the sum of its proper divisors (1).

27118668571 is an equidigital number, since it uses as much as digits as its factorization.

27118668571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 52.

The spelling of 27118668571 in words is "twenty-seven billion, one hundred eighteen million, six hundred sixty-eight thousand, five hundred seventy-one".