27374644647313 has 2 divisors, whose sum is σ = 27374644647314. Its totient is φ = 27374644647312.

The previous prime is 27374644647307. The next prime is 27374644647373. The reversal of 27374644647313 is 31374644647372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23786075147409 + 3588569499904 = 4877097^2 + 1894352^2 .

It is a cyclic number.

It is not a de Polignac number, because 27374644647313 - 2²⁹ = 27374107776401 is a prime.

It is not a weakly prime, because it can be changed into another prime (27374644647373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13687322323656 + 13687322323657.

It is an arithmetic number, because the mean of its divisors is an integer number (13687322323657).

Almost surely, 2^{27374644647313} is an apocalyptic number.

It is an amenable number.

27374644647313 is a deficient number, since it is larger than the sum of its proper divisors (1).

27374644647313 is an equidigital number, since it uses as much as digits as its factorization.

27374644647313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170698752, while the sum is 61.

The spelling of 27374644647313 in words is "twenty-seven trillion, three hundred seventy-four billion, six hundred forty-four million, six hundred forty-seven thousand, three hundred thirteen".