12993647204 has 24 divisors (see below), whose sum is σ = 23006161080. Its totient is φ = 6420533504.

The previous prime is 12993647197. The next prime is 12993647243. The reversal of 12993647204 is 40274639921.

It can be written as a sum of positive squares in 4 ways, for example, as 904204900 + 12089442304 = 30070^2 + 109952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779582 + ... + 796074.

It is an arithmetic number, because the mean of its divisors is an integer number (958590045).

Almost surely, 2^12993647204 is an apocalyptic number.

It is an amenable number.

12993647204 is a deficient number, since it is larger than the sum of its proper divisors (10012513876).

12993647204 is a wasteful number, since it uses less digits than its factorization.

12993647204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18799 (or 18797 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 12993647204 in words is "twelve billion, nine hundred ninety-three million, six hundred forty-seven thousand, two hundred four".