12869599217 has 2 divisors, whose sum is σ = 12869599218. Its totient is φ = 12869599216.

The previous prime is 12869599177. The next prime is 12869599243. The reversal of 12869599217 is 71299596821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12869541136 + 58081 = 113444^2 + 241^2 .

It is a cyclic number.

It is not a de Polignac number, because 12869599217 - 2¹⁸ = 12869337073 is a prime.

It is not a weakly prime, because it can be changed into another prime (12869599117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6434799608 + 6434799609.

It is an arithmetic number, because the mean of its divisors is an integer number (6434799609).

Almost surely, 2^12869599217 is an apocalyptic number.

It is an amenable number.

12869599217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12869599217 is an equidigital number, since it uses as much as digits as its factorization.

12869599217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 59.

The spelling of 12869599217 in words is "twelve billion, eight hundred sixty-nine million, five hundred ninety-nine thousand, two hundred seventeen".