12989640297 has 16 divisors (see below), whose sum is σ = 17498908800. Its totient is φ = 8570295552.

The previous prime is 12989640289. The next prime is 12989640311. The reversal of 12989640297 is 79204698921.

12989640297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12989640297 - 2³ = 12989640289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12989640247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201204 + ... + 257802.

It is an arithmetic number, because the mean of its divisors is an integer number (1093681800).

Almost surely, 2^12989640297 is an apocalyptic number.

It is an amenable number.

12989640297 is a deficient number, since it is larger than the sum of its proper divisors (4509268503).

12989640297 is a wasteful number, since it uses less digits than its factorization.

12989640297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57392.

The product of its (nonzero) digits is 3919104, while the sum is 57.

The spelling of 12989640297 in words is "twelve billion, nine hundred eighty-nine million, six hundred forty thousand, two hundred ninety-seven".