17996839199 has 8 divisors (see below), whose sum is σ = 18116087808. Its totient is φ = 17877851640.

The previous prime is 17996839163. The next prime is 17996839219. The reversal of 17996839199 is 99193869971.

It is a happy number.

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-17996839199 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 (17996832199) 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, 74054 + ... + 203660.

It is an arithmetic number, because the mean of its divisors is an integer number (2264510976).

Almost surely, 2^17996839199 is an apocalyptic number.

17996839199 is a deficient number, since it is larger than the sum of its proper divisors (119248609).

17996839199 is a wasteful number, since it uses less digits than its factorization.

17996839199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130525.

The product of its digits is 59521392, while the sum is 71.

The spelling of 17996839199 in words is "seventeen billion, nine hundred ninety-six million, eight hundred thirty-nine thousand, one hundred ninety-nine".