12539007799 has 2 divisors, whose sum is σ = 12539007800. Its totient is φ = 12539007798.

The previous prime is 12539007779. The next prime is 12539007829. The reversal of 12539007799 is 99770093521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12539007799 - 2¹³ = 12538999607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12539007749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6269503899 + 6269503900.

It is an arithmetic number, because the mean of its divisors is an integer number (6269503900).

Almost surely, 2^12539007799 is an apocalyptic number.

12539007799 is a deficient number, since it is larger than the sum of its proper divisors (1).

12539007799 is an equidigital number, since it uses as much as digits as its factorization.

12539007799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1071630, while the sum is 52.

The spelling of 12539007799 in words is "twelve billion, five hundred thirty-nine million, seven thousand, seven hundred ninety-nine".