12650412569 has 2 divisors, whose sum is σ = 12650412570. Its totient is φ = 12650412568.

The previous prime is 12650412529. The next prime is 12650412571. The reversal of 12650412569 is 96521405621.

12650412569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10142906944 + 2507505625 = 100712^2 + 50075^2 .

It is an emirp because it is prime and its reverse (96521405621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12650412569 - 2²⁴ = 12633635353 is a prime.

It is a super-2 number, since 2×12650412569² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 12650412571, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12650412529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6325206284 + 6325206285.

It is an arithmetic number, because the mean of its divisors is an integer number (6325206285).

Almost surely, 2^12650412569 is an apocalyptic number.

It is an amenable number.

12650412569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12650412569 is an equidigital number, since it uses as much as digits as its factorization.

12650412569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 12650412569 in words is "twelve billion, six hundred fifty million, four hundred twelve thousand, five hundred sixty-nine".