13719635124913 has 4 divisors (see below), whose sum is σ = 14526672485220. Its totient is φ = 12912597764608.

The previous prime is 13719635124889. The next prime is 13719635124919. The reversal of 13719635124913 is 31942153691731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11003968431729 + 2715666693184 = 3317223^2 + 1647928^2 .

It is a cyclic number.

It is not a de Polignac number, because 13719635124913 - 2²⁵ = 13719601570481 is a prime.

It is a super-2 number, since 2×13719635124913² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13719635124919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403518680128 + ... + 403518680161.

It is an arithmetic number, because the mean of its divisors is an integer number (3631668121305).

Almost surely, 2^{13719635124913} is an apocalyptic number.

It is an amenable number.

13719635124913 is a deficient number, since it is larger than the sum of its proper divisors (807037360307).

13719635124913 is an equidigital number, since it uses as much as digits as its factorization.

13719635124913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807037360306.

The product of its digits is 3674160, while the sum is 55.

The spelling of 13719635124913 in words is "thirteen trillion, seven hundred nineteen billion, six hundred thirty-five million, one hundred twenty-four thousand, nine hundred thirteen".