16489594917 has 24 divisors (see below), whose sum is σ = 23980957728. Its totient is φ = 10918087200.

The previous prime is 16489594879. The next prime is 16489594931. The reversal of 16489594917 is 71949598461.

16489594917 is a `hidden beast` number, since 1 + 64 + 89 + 5 + 9 + 491 + 7 = 666.

16489594917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16489594917 - 2⁷ = 16489594789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16489594987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2829867 + ... + 2835687.

It is an arithmetic number, because the mean of its divisors is an integer number (999206572).

Almost surely, 2^16489594917 is an apocalyptic number.

It is an amenable number.

16489594917 is a deficient number, since it is larger than the sum of its proper divisors (7491362811).

16489594917 is a wasteful number, since it uses less digits than its factorization.

16489594917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7921 (or 7918 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The spelling of 16489594917 in words is "sixteen billion, four hundred eighty-nine million, five hundred ninety-four thousand, nine hundred seventeen".