13983646473 has 24 divisors (see below), whose sum is σ = 20484289280. Its totient is φ = 9190687680.

The previous prime is 13983646451. The next prime is 13983646477. The reversal of 13983646473 is 37464638931.

It is a happy number.

13983646473 is a `hidden beast` number, since 1 + 39 + 83 + 6 + 464 + 73 = 666.

It is not a de Polignac number, because 13983646473 - 2⁵ = 13983646441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13983646477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2572068 + ... + 2577498.

Almost surely, 2^13983646473 is an apocalyptic number.

It is an amenable number.

13983646473 is a deficient number, since it is larger than the sum of its proper divisors (6500642807).

13983646473 is a wasteful number, since it uses less digits than its factorization.

13983646473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429 (or 9426 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 54.

The spelling of 13983646473 in words is "thirteen billion, nine hundred eighty-three million, six hundred forty-six thousand, four hundred seventy-three".