12642473267399 has 2 divisors, whose sum is σ = 12642473267400. Its totient is φ = 12642473267398.

The previous prime is 12642473267383. The next prime is 12642473267449. The reversal of 12642473267399 is 99376237424621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12642473267399 - 2⁴ = 12642473267383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642473267329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321236633699 + 6321236633700.

It is an arithmetic number, because the mean of its divisors is an integer number (6321236633700).

Almost surely, 2^{12642473267399} is an apocalyptic number.

12642473267399 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642473267399 is an equidigital number, since it uses as much as digits as its factorization.

12642473267399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164602368, while the sum is 65.

The spelling of 12642473267399 in words is "twelve trillion, six hundred forty-two billion, four hundred seventy-three million, two hundred sixty-seven thousand, three hundred ninety-nine".