12493472639 has 16 divisors (see below), whose sum is σ = 12699144192. Its totient is φ = 12289667328.

The previous prime is 12493472611. The next prime is 12493472683. The reversal of 12493472639 is 93627439421.

It is a cyclic number.

It is not a de Polignac number, because 12493472639 - 2¹² = 12493468543 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 (12493472609) 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, 19429652 + ... + 19430294.

It is an arithmetic number, because the mean of its divisors is an integer number (793696512).

Almost surely, 2^12493472639 is an apocalyptic number.

12493472639 is a deficient number, since it is larger than the sum of its proper divisors (205671553).

12493472639 is an equidigital number, since it uses as much as digits as its factorization.

12493472639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646.

The product of its digits is 1959552, while the sum is 50.

The spelling of 12493472639 in words is "twelve billion, four hundred ninety-three million, four hundred seventy-two thousand, six hundred thirty-nine".