27947576297 has 2 divisors, whose sum is σ = 27947576298. Its totient is φ = 27947576296.

The previous prime is 27947576291. The next prime is 27947576339. The reversal of 27947576297 is 79267574972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21305489296 + 6642087001 = 145964^2 + 81499^2 .

It is a cyclic number.

It is not a de Polignac number, because 27947576297 - 2⁶ = 27947576233 is a prime.

It is not a weakly prime, because it can be changed into another prime (27947576291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13973788148 + 13973788149.

It is an arithmetic number, because the mean of its divisors is an integer number (13973788149).

Almost surely, 2^27947576297 is an apocalyptic number.

It is an amenable number.

27947576297 is a deficient number, since it is larger than the sum of its proper divisors (1).

27947576297 is an equidigital number, since it uses as much as digits as its factorization.

27947576297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93350880, while the sum is 65.

The spelling of 27947576297 in words is "twenty-seven billion, nine hundred forty-seven million, five hundred seventy-six thousand, two hundred ninety-seven".