13818172713 has 16 divisors (see below), whose sum is σ = 19583933760. Its totient is φ = 8636481536.

The previous prime is 13818172649. The next prime is 13818172727. The reversal of 13818172713 is 31727181831.

It is a cyclic number.

It is not a de Polignac number, because 13818172713 - 2⁶ = 13818172649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13818173713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514023 + ... + 540236.

It is an arithmetic number, because the mean of its divisors is an integer number (1223995860).

Almost surely, 2^13818172713 is an apocalyptic number.

It is an amenable number.

13818172713 is a deficient number, since it is larger than the sum of its proper divisors (5765761047).

13818172713 is a wasteful number, since it uses less digits than its factorization.

13818172713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054536.

The product of its digits is 56448, while the sum is 42.

The spelling of 13818172713 in words is "thirteen billion, eight hundred eighteen million, one hundred seventy-two thousand, seven hundred thirteen".