12500013919 has 2 divisors, whose sum is σ = 12500013920. Its totient is φ = 12500013918.

The previous prime is 12500013913. The next prime is 12500013923. The reversal of 12500013919 is 91931000521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12500013919 - 2²⁵ = 12466459487 is a prime.

It is a super-2 number, since 2×12500013919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12500013913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250006959 + 6250006960.

It is an arithmetic number, because the mean of its divisors is an integer number (6250006960).

Almost surely, 2^12500013919 is an apocalyptic number.

12500013919 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500013919 is an equidigital number, since it uses as much as digits as its factorization.

12500013919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 31.

The spelling of 12500013919 in words is "twelve billion, five hundred million, thirteen thousand, nine hundred nineteen".