12997409424 has 40 divisors (see below), whose sum is σ = 33752458752. Its totient is φ = 4309783680.

The previous prime is 12997409413. The next prime is 12997409429. The reversal of 12997409424 is 42490479921.

It is not an unprimeable number, because it can be changed into a prime (12997409429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699679 + ... + 718014.

Almost surely, 2^12997409424 is an apocalyptic number.

It is an amenable number.

12997409424 is an abundant number, since it is smaller than the sum of its proper divisors (20755049328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12997409424 is a wasteful number, since it uses less digits than its factorization.

12997409424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417895 (or 1417889 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 12997409424 in words is "twelve billion, nine hundred ninety-seven million, four hundred nine thousand, four hundred twenty-four".