12506377579 has 2 divisors, whose sum is σ = 12506377580. Its totient is φ = 12506377578.

The previous prime is 12506377567. The next prime is 12506377591. The reversal of 12506377579 is 97577360521.

It is a balanced prime because it is at equal distance from previous prime (12506377567) and next prime (12506377591).

It is a cyclic number.

It is not a de Polignac number, because 12506377579 - 2²⁵ = 12472823147 is a prime.

It is not a weakly prime, because it can be changed into another prime (12506377529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6253188789 + 6253188790.

It is an arithmetic number, because the mean of its divisors is an integer number (6253188790).

Almost surely, 2^12506377579 is an apocalyptic number.

12506377579 is a deficient number, since it is larger than the sum of its proper divisors (1).

12506377579 is an equidigital number, since it uses as much as digits as its factorization.

12506377579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2778300, while the sum is 52.

The spelling of 12506377579 in words is "twelve billion, five hundred six million, three hundred seventy-seven thousand, five hundred seventy-nine".