12463645431599 has 2 divisors, whose sum is σ = 12463645431600. Its totient is φ = 12463645431598.

The previous prime is 12463645431593. The next prime is 12463645431619. The reversal of 12463645431599 is 99513454636421.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12463645431599 - 2⁴⁰ = 11364133803823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12463645431593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6231822715799 + 6231822715800.

It is an arithmetic number, because the mean of its divisors is an integer number (6231822715800).

Almost surely, 2^{12463645431599} is an apocalyptic number.

12463645431599 is a deficient number, since it is larger than the sum of its proper divisors (1).

12463645431599 is an equidigital number, since it uses as much as digits as its factorization.

12463645431599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 83980800, while the sum is 62.

The spelling of 12463645431599 in words is "twelve trillion, four hundred sixty-three billion, six hundred forty-five million, four hundred thirty-one thousand, five hundred ninety-nine".