12673318947 has 16 divisors (see below), whose sum is σ = 17179733760. Its totient is φ = 8307972000.

The previous prime is 12673318937. The next prime is 12673318963. The reversal of 12673318947 is 74981337621.

It is a happy number.

It is not a de Polignac number, because 12673318947 - 2¹¹ = 12673316899 is a prime.

It is a super-2 number, since 2×12673318947² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12673318947.

It is not an unprimeable number, because it can be changed into a prime (12673318927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806754 + ... + 822312.

It is an arithmetic number, because the mean of its divisors is an integer number (1073733360).

Almost surely, 2^12673318947 is an apocalyptic number.

12673318947 is a deficient number, since it is larger than the sum of its proper divisors (4506414813).

12673318947 is a wasteful number, since it uses less digits than its factorization.

12673318947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20074.

The product of its digits is 1524096, while the sum is 51.

The spelling of 12673318947 in words is "twelve billion, six hundred seventy-three million, three hundred eighteen thousand, nine hundred forty-seven".