16984073509 has 8 divisors (see below), whose sum is σ = 18880558592. Its totient is φ = 15171876720.

The previous prime is 16984073461. The next prime is 16984073551. The reversal of 16984073509 is 90537048961.

It is a happy number.

16984073509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16984073509 - 2⁹ = 16984072997 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 (16984073569) 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 7 ways as a sum of consecutive naturals, for example, 21071649 + ... + 21072454.

It is an arithmetic number, because the mean of its divisors is an integer number (2360069824).

Almost surely, 2^16984073509 is an apocalyptic number.

It is an amenable number.

16984073509 is a deficient number, since it is larger than the sum of its proper divisors (1896485083).

16984073509 is a wasteful number, since it uses less digits than its factorization.

16984073509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42144147.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 16984073509 in words is "sixteen billion, nine hundred eighty-four million, seventy-three thousand, five hundred nine".