12897537399212 has 24 divisors (see below), whose sum is σ = 22613299380672. Its totient is φ = 6436597798800.

The previous prime is 12897537399179. The next prime is 12897537399223. The reversal of 12897537399212 is 21299373579821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16545743 + ... + 17307705.

It is an arithmetic number, because the mean of its divisors is an integer number (942220807528).

Almost surely, 2^{12897537399212} is an apocalyptic number.

It is an amenable number.

12897537399212 is a deficient number, since it is larger than the sum of its proper divisors (9715761981460).

12897537399212 is a wasteful number, since it uses less digits than its factorization.

12897537399212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769949 (or 769947 counting only the distinct ones).

The product of its digits is 102876480, while the sum is 68.

The spelling of 12897537399212 in words is "twelve trillion, eight hundred ninety-seven billion, five hundred thirty-seven million, three hundred ninety-nine thousand, two hundred twelve".