13297727647 has 2 divisors, whose sum is σ = 13297727648. Its totient is φ = 13297727646.

The previous prime is 13297727629. The next prime is 13297727687. The reversal of 13297727647 is 74672779231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13297727647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13297727627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6648863823 + 6648863824.

It is an arithmetic number, because the mean of its divisors is an integer number (6648863824).

Almost surely, 2^13297727647 is an apocalyptic number.

13297727647 is a deficient number, since it is larger than the sum of its proper divisors (1).

13297727647 is an equidigital number, since it uses as much as digits as its factorization.

13297727647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6223392, while the sum is 55.

The spelling of 13297727647 in words is "thirteen billion, two hundred ninety-seven million, seven hundred twenty-seven thousand, six hundred forty-seven".