12935066569 has 2 divisors, whose sum is σ = 12935066570. Its totient is φ = 12935066568.

The previous prime is 12935066537. The next prime is 12935066593. The reversal of 12935066569 is 96566053921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12811523344 + 123543225 = 113188^2 + 11115^2 .

It is a cyclic number.

It is not a de Polignac number, because 12935066569 - 2⁵ = 12935066537 is a prime.

It is a super-2 number, since 2×12935066569² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12935066519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6467533284 + 6467533285.

It is an arithmetic number, because the mean of its divisors is an integer number (6467533285).

Almost surely, 2^12935066569 is an apocalyptic number.

It is an amenable number.

12935066569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12935066569 is an equidigital number, since it uses as much as digits as its factorization.

12935066569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2624400, while the sum is 52.

The spelling of 12935066569 in words is "twelve billion, nine hundred thirty-five million, sixty-six thousand, five hundred sixty-nine".