12689335605299 has 2 divisors, whose sum is σ = 12689335605300. Its totient is φ = 12689335605298.

The previous prime is 12689335605259. The next prime is 12689335605337. The reversal of 12689335605299 is 99250653398621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12689335605299 is a prime.

It is a super-2 number, since 2×12689335605299² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12689335605259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6344667802649 + 6344667802650.

It is an arithmetic number, because the mean of its divisors is an integer number (6344667802650).

Almost surely, 2^{12689335605299} is an apocalyptic number.

12689335605299 is a deficient number, since it is larger than the sum of its proper divisors (1).

12689335605299 is an equidigital number, since it uses as much as digits as its factorization.

12689335605299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188956800, while the sum is 68.

The spelling of 12689335605299 in words is "twelve trillion, six hundred eighty-nine billion, three hundred thirty-five million, six hundred five thousand, two hundred ninety-nine".