27297224917 has 2 divisors, whose sum is σ = 27297224918. Its totient is φ = 27297224916.

The previous prime is 27297224879. The next prime is 27297224959. The reversal of 27297224917 is 71942279272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22728276081 + 4568948836 = 150759^2 + 67594^2 .

It is a cyclic number.

It is not a de Polignac number, because 27297224917 - 2²⁷ = 27163007189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27297224117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13648612458 + 13648612459.

It is an arithmetic number, because the mean of its divisors is an integer number (13648612459).

Almost surely, 2^27297224917 is an apocalyptic number.

It is an amenable number.

27297224917 is a deficient number, since it is larger than the sum of its proper divisors (1).

27297224917 is an equidigital number, since it uses as much as digits as its factorization.

27297224917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 52.

The spelling of 27297224917 in words is "twenty-seven billion, two hundred ninety-seven million, two hundred twenty-four thousand, nine hundred seventeen".