16946347679 has 4 divisors (see below), whose sum is σ = 16956184776. Its totient is φ = 16936510584.

The previous prime is 16946347657. The next prime is 16946347697. The reversal of 16946347679 is 97674364961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16946347679 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 (16946347619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4915964 + ... + 4919409.

It is an arithmetic number, because the mean of its divisors is an integer number (4239046194).

Almost surely, 2^16946347679 is an apocalyptic number.

16946347679 is a deficient number, since it is larger than the sum of its proper divisors (9837097).

16946347679 is an equidigital number, since it uses as much as digits as its factorization.

16946347679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9837096.

The product of its digits is 41150592, while the sum is 62.

The spelling of 16946347679 in words is "sixteen billion, nine hundred forty-six million, three hundred forty-seven thousand, six hundred seventy-nine".