12897297207 has 6 divisors (see below), whose sum is σ = 18629429312. Its totient is φ = 8598198132.

The previous prime is 12897297181. The next prime is 12897297211. The reversal of 12897297207 is 70279279821.

It is a happy number.

12897297207 is a `hidden beast` number, since 1 + 289 + 72 + 97 + 207 = 666.

It is not a de Polignac number, because 12897297207 - 2⁷ = 12897297079 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 (12897295207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 716516503 + ... + 716516520.

Almost surely, 2^12897297207 is an apocalyptic number.

12897297207 is a deficient number, since it is larger than the sum of its proper divisors (5732132105).

12897297207 is a wasteful number, since it uses less digits than its factorization.

12897297207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433033029 (or 1433033026 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 12897297207 in words is "twelve billion, eight hundred ninety-seven million, two hundred ninety-seven thousand, two hundred seven".