16913002509 has 12 divisors (see below), whose sum is σ = 26309115196. Its totient is φ = 10408001472.

The previous prime is 16913002471. The next prime is 16913002523. The reversal of 16913002509 is 90520031961.

16913002509 is a `hidden beast` number, since 16 + 9 + 130 + 0 + 2 + 509 = 666.

16913002509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2502200484 + 14410802025 = 50022^2 + 120045^2 .

It is not a de Polignac number, because 16913002509 - 2⁹ = 16913001997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16913002609) 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 11 ways as a sum of consecutive naturals, for example, 72277672 + ... + 72277905.

Almost surely, 2^16913002509 is an apocalyptic number.

It is an amenable number.

16913002509 is a deficient number, since it is larger than the sum of its proper divisors (9396112687).

16913002509 is a wasteful number, since it uses less digits than its factorization.

16913002509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144555596 (or 144555593 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The spelling of 16913002509 in words is "sixteen billion, nine hundred thirteen million, two thousand, five hundred nine".