13639511297 has 2 divisors, whose sum is σ = 13639511298. Its totient is φ = 13639511296.

The previous prime is 13639511293. The next prime is 13639511311. The reversal of 13639511297 is 79211593631.

13639511297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13589963776 + 49547521 = 116576^2 + 7039^2 .

It is an emirp because it is prime and its reverse (79211593631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13639511297 - 2² = 13639511293 is a prime.

It is not a weakly prime, because it can be changed into another prime (13639511293) 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, 6819755648 + 6819755649.

It is an arithmetic number, because the mean of its divisors is an integer number (6819755649).

Almost surely, 2^13639511297 is an apocalyptic number.

It is an amenable number.

13639511297 is a deficient number, since it is larger than the sum of its proper divisors (1).

13639511297 is an equidigital number, since it uses as much as digits as its factorization.

13639511297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 47.

The spelling of 13639511297 in words is "thirteen billion, six hundred thirty-nine million, five hundred eleven thousand, two hundred ninety-seven".