12546377579 has 2 divisors, whose sum is σ = 12546377580. Its totient is φ = 12546377578.

The previous prime is 12546377539. The next prime is 12546377633. The reversal of 12546377579 is 97577364521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12546377579 - 2¹⁶ = 12546312043 is a prime.

It is not a weakly prime, because it can be changed into another prime (12546377509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6273188789 + 6273188790.

It is an arithmetic number, because the mean of its divisors is an integer number (6273188790).

Almost surely, 2^12546377579 is an apocalyptic number.

12546377579 is a deficient number, since it is larger than the sum of its proper divisors (1).

12546377579 is an equidigital number, since it uses as much as digits as its factorization.

12546377579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11113200, while the sum is 56.

The spelling of 12546377579 in words is "twelve billion, five hundred forty-six million, three hundred seventy-seven thousand, five hundred seventy-nine".