13813815713 has 4 divisors (see below), whose sum is σ = 13814053680. Its totient is φ = 13813577748.

The previous prime is 13813815611. The next prime is 13813815737. The reversal of 13813815713 is 31751831831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13813815713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13813815773) 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, 31706 + ... + 169212.

It is an arithmetic number, because the mean of its divisors is an integer number (3453513420).

Almost surely, 2^13813815713 is an apocalyptic number.

It is an amenable number.

13813815713 is a deficient number, since it is larger than the sum of its proper divisors (237967).

13813815713 is a wasteful number, since it uses less digits than its factorization.

13813815713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237966.

The product of its digits is 60480, while the sum is 41.

The spelling of 13813815713 in words is "thirteen billion, eight hundred thirteen million, eight hundred fifteen thousand, seven hundred thirteen".