12500081879 has 2 divisors, whose sum is σ = 12500081880. Its totient is φ = 12500081878.

The previous prime is 12500081821. The next prime is 12500081899. The reversal of 12500081879 is 97818000521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12500081879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12500081819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250040939 + 6250040940.

It is an arithmetic number, because the mean of its divisors is an integer number (6250040940).

Almost surely, 2^12500081879 is an apocalyptic number.

12500081879 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500081879 is an equidigital number, since it uses as much as digits as its factorization.

12500081879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 41.

The spelling of 12500081879 in words is "twelve billion, five hundred million, eighty-one thousand, eight hundred seventy-nine".