27516163831097 has 2 divisors, whose sum is σ = 27516163831098. Its totient is φ = 27516163831096.

The previous prime is 27516163831063. The next prime is 27516163831139. The reversal of 27516163831097 is 79013836161572.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22983739986496 + 4532423844601 = 4794136^2 + 2128949^2 .

It is a cyclic number.

It is not a de Polignac number, because 27516163831097 - 2⁶ = 27516163831033 is a prime.

It is not a weakly prime, because it can be changed into another prime (27516163831397) 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 as a sum of consecutive naturals, namely, 13758081915548 + 13758081915549.

It is an arithmetic number, because the mean of its divisors is an integer number (13758081915549).

Almost surely, 2^{27516163831097} is an apocalyptic number.

It is an amenable number.

27516163831097 is a deficient number, since it is larger than the sum of its proper divisors (1).

27516163831097 is an equidigital number, since it uses as much as digits as its factorization.

27516163831097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 27516163831097 in words is "twenty-seven trillion, five hundred sixteen billion, one hundred sixty-three million, eight hundred thirty-one thousand, ninety-seven".