12355872499 has 2 divisors, whose sum is σ = 12355872500. Its totient is φ = 12355872498.

The previous prime is 12355872479. The next prime is 12355872533. The reversal of 12355872499 is 99427855321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12355872499 - 2⁵ = 12355872467 is a prime.

It is not a weakly prime, because it can be changed into another prime (12355872449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6177936249 + 6177936250.

It is an arithmetic number, because the mean of its divisors is an integer number (6177936250).

Almost surely, 2^12355872499 is an apocalyptic number.

12355872499 is a deficient number, since it is larger than the sum of its proper divisors (1).

12355872499 is an equidigital number, since it uses as much as digits as its factorization.

12355872499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 55.

The spelling of 12355872499 in words is "twelve billion, three hundred fifty-five million, eight hundred seventy-two thousand, four hundred ninety-nine".