12500000138699 has 2 divisors, whose sum is σ = 12500000138700. Its totient is φ = 12500000138698.

The previous prime is 12500000138671. The next prime is 12500000138777. The reversal of 12500000138699 is 99683100000521.

It is a happy number.

12500000138699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12500000138699 - 2¹² = 12500000134603 is a prime.

It is not a weakly prime, because it can be changed into another prime (12500000138609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250000069349 + 6250000069350.

It is an arithmetic number, because the mean of its divisors is an integer number (6250000069350).

Almost surely, 2^{12500000138699} is an apocalyptic number.

12500000138699 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500000138699 is an equidigital number, since it uses as much as digits as its factorization.

12500000138699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 12500000138699 in words is "twelve trillion, five hundred billion, one hundred thirty-eight thousand, six hundred ninety-nine".