12969959399 has 2 divisors, whose sum is σ = 12969959400. Its totient is φ = 12969959398.

The previous prime is 12969959381. The next prime is 12969959407. The reversal of 12969959399 is 99395996921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12969959399 - 2¹² = 12969955303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12969659399) 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, 6484979699 + 6484979700.

It is an arithmetic number, because the mean of its divisors is an integer number (6484979700).

Almost surely, 2^12969959399 is an apocalyptic number.

12969959399 is a deficient number, since it is larger than the sum of its proper divisors (1).

12969959399 is an equidigital number, since it uses as much as digits as its factorization.

12969959399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95659380, while the sum is 71.

The spelling of 12969959399 in words is "twelve billion, nine hundred sixty-nine million, nine hundred fifty-nine thousand, three hundred ninety-nine".