16679239818719 has 8 divisors (see below), whose sum is σ = 17575517539440. Its totient is φ = 15784804397376.

The previous prime is 16679239818617. The next prime is 16679239818737. The reversal of 16679239818719 is 91781893297661.

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-16679239818719 is a prime.

It is a super-2 number, since 2×16679239818719² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16679239818719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16672239818719) 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, 460556252 + ... + 460592465.

It is an arithmetic number, because the mean of its divisors is an integer number (2196939692430).

Almost surely, 2^{16679239818719} is an apocalyptic number.

16679239818719 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16679239818719 is a deficient number, since it is larger than the sum of its proper divisors (896277720721).

16679239818719 is an equidigital number, since it uses as much as digits as its factorization.

16679239818719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921149689.

The product of its digits is 493807104, while the sum is 77.

The spelling of 16679239818719 in words is "sixteen trillion, six hundred seventy-nine billion, two hundred thirty-nine million, eight hundred eighteen thousand, seven hundred nineteen".