13696225779217 has 2 divisors, whose sum is σ = 13696225779218. Its totient is φ = 13696225779216.

The previous prime is 13696225779143. The next prime is 13696225779253. The reversal of 13696225779217 is 71297752269631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12790894462096 + 905331317121 = 3576436^2 + 951489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13696225779217 is a prime.

It is not a weakly prime, because it can be changed into another prime (13696225779317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6848112889608 + 6848112889609.

It is an arithmetic number, because the mean of its divisors is an integer number (6848112889609).

Almost surely, 2^{13696225779217} is an apocalyptic number.

It is an amenable number.

13696225779217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13696225779217 is an equidigital number, since it uses as much as digits as its factorization.

13696225779217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120022560, while the sum is 67.

The spelling of 13696225779217 in words is "thirteen trillion, six hundred ninety-six billion, two hundred twenty-five million, seven hundred seventy-nine thousand, two hundred seventeen".