16979273746 has 4 divisors (see below), whose sum is σ = 25468910622. Its totient is φ = 8489636872.

The previous prime is 16979273687. The next prime is 16979273747. The reversal of 16979273746 is 64737297961.

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

It can be written as a sum of positive squares in only one way, i.e., 15485064721 + 1494209025 = 124439^2 + 38655^2 .

It is not an unprimeable number, because it can be changed into a prime (16979273747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4244818435 + ... + 4244818438.

Almost surely, 2^16979273746 is an apocalyptic number.

16979273746 is a deficient number, since it is larger than the sum of its proper divisors (8489636876).

16979273746 is an equidigital number, since it uses as much as digits as its factorization.

16979273746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8489636875.

The product of its digits is 24004512, while the sum is 61.

The spelling of 16979273746 in words is "sixteen billion, nine hundred seventy-nine million, two hundred seventy-three thousand, seven hundred forty-six".