12897390563 has 2 divisors, whose sum is σ = 12897390564. Its totient is φ = 12897390562.

The previous prime is 12897390557. The next prime is 12897390601. The reversal of 12897390563 is 36509379821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12897390563 - 2¹⁰ = 12897389539 is a prime.

It is a super-2 number, since 2×12897390563² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12897390763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6448695281 + 6448695282.

It is an arithmetic number, because the mean of its divisors is an integer number (6448695282).

Almost surely, 2^12897390563 is an apocalyptic number.

12897390563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12897390563 is an equidigital number, since it uses as much as digits as its factorization.

12897390563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 12897390563 in words is "twelve billion, eight hundred ninety-seven million, three hundred ninety thousand, five hundred sixty-three".