27513900025169 has 2 divisors, whose sum is σ = 27513900025170. Its totient is φ = 27513900025168.

The previous prime is 27513900025153. The next prime is 27513900025187. The reversal of 27513900025169 is 96152000931572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25650983502400 + 1862916522769 = 5064680^2 + 1364887^2 .

It is a cyclic number.

It is not a de Polignac number, because 27513900025169 - 2⁴ = 27513900025153 is a prime.

It is a super-2 number, since 2×27513900025169² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27513900025769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13756950012584 + 13756950012585.

It is an arithmetic number, because the mean of its divisors is an integer number (13756950012585).

Almost surely, 2^{27513900025169} is an apocalyptic number.

It is an amenable number.

27513900025169 is a deficient number, since it is larger than the sum of its proper divisors (1).

27513900025169 is an equidigital number, since it uses as much as digits as its factorization.

27513900025169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The spelling of 27513900025169 in words is "twenty-seven trillion, five hundred thirteen billion, nine hundred million, twenty-five thousand, one hundred sixty-nine".