16968840679 has 6 divisors (see below), whose sum is σ = 19739263704. Its totient is φ = 14544720540.

The previous prime is 16968840631. The next prime is 16968840719. The reversal of 16968840679 is 97604886961.

It is a happy number.

It is not a de Polignac number, because 16968840679 - 2⁹ = 16968840167 is a prime.

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 16968840679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16968840619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 173151387 + ... + 173151484.

It is an arithmetic number, because the mean of its divisors is an integer number (3289877284).

Almost surely, 2^16968840679 is an apocalyptic number.

16968840679 is a deficient number, since it is larger than the sum of its proper divisors (2770423025).

16968840679 is an equidigital number, since it uses as much as digits as its factorization.

16968840679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346302885 (or 346302878 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 16968840679 in words is "sixteen billion, nine hundred sixty-eight million, eight hundred forty thousand, six hundred seventy-nine".