18688713199 has 8 divisors (see below), whose sum is σ = 20130076400. Its totient is φ = 17247888576.

The previous prime is 18688713187. The next prime is 18688713203. The reversal of 18688713199 is 99131788681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18688713199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18688713119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61077 + ... + 202750.

It is an arithmetic number, because the mean of its divisors is an integer number (2516259550).

Almost surely, 2^18688713199 is an apocalyptic number.

18688713199 is a deficient number, since it is larger than the sum of its proper divisors (1441363201).

18688713199 is a wasteful number, since it uses less digits than its factorization.

18688713199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269289.

The product of its digits is 5225472, while the sum is 61.

The spelling of 18688713199 in words is "eighteen billion, six hundred eighty-eight million, seven hundred thirteen thousand, one hundred ninety-nine".