12897320376 has 16 divisors (see below), whose sum is σ = 32243301000. Its totient is φ = 4299106784.

The previous prime is 12897320347. The next prime is 12897320377. The reversal of 12897320376 is 67302379821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12897320377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268694151 + ... + 268694198.

Almost surely, 2^12897320376 is an apocalyptic number.

It is an amenable number.

12897320376 is an abundant number, since it is smaller than the sum of its proper divisors (19345980624).

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

12897320376 is a wasteful number, since it uses less digits than its factorization.

12897320376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537388358 (or 537388354 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 12897320376 in words is "twelve billion, eight hundred ninety-seven million, three hundred twenty thousand, three hundred seventy-six".