12505941499 has 2 divisors, whose sum is σ = 12505941500. Its totient is φ = 12505941498.

The previous prime is 12505941479. The next prime is 12505941521. The reversal of 12505941499 is 99414950521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12505941499 - 2¹⁵ = 12505908731 is a prime.

It is not a weakly prime, because it can be changed into another prime (12505941439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6252970749 + 6252970750.

It is an arithmetic number, because the mean of its divisors is an integer number (6252970750).

Almost surely, 2^12505941499 is an apocalyptic number.

12505941499 is a deficient number, since it is larger than the sum of its proper divisors (1).

12505941499 is an equidigital number, since it uses as much as digits as its factorization.

12505941499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 49.

The spelling of 12505941499 in words is "twelve billion, five hundred five million, nine hundred forty-one thousand, four hundred ninety-nine".