16889794615 has 4 divisors (see below), whose sum is σ = 20267753544. Its totient is φ = 13511835688.

The previous prime is 16889794567. The next prime is 16889794633. The reversal of 16889794615 is 51649798861.

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

It is a cyclic number.

It is not a de Polignac number, because 16889794615 - 2¹⁷ = 16889663543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1688979457 + ... + 1688979466.

It is an arithmetic number, because the mean of its divisors is an integer number (5066938386).

Almost surely, 2^16889794615 is an apocalyptic number.

16889794615 is a deficient number, since it is larger than the sum of its proper divisors (3377958929).

16889794615 is an equidigital number, since it uses as much as digits as its factorization.

16889794615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377958928.

The product of its digits is 26127360, while the sum is 64.

The spelling of 16889794615 in words is "sixteen billion, eight hundred eighty-nine million, seven hundred ninety-four thousand, six hundred fifteen".