12605580851 has 2 divisors, whose sum is σ = 12605580852. Its totient is φ = 12605580850.

The previous prime is 12605580839. The next prime is 12605580857. The reversal of 12605580851 is 15808550621.

It is a strong prime.

It is an emirp because it is prime and its reverse (15808550621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12605580851 - 2³⁰ = 11531839027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12605580799 and 12605580808.

It is not a weakly prime, because it can be changed into another prime (12605580857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302790425 + 6302790426.

It is an arithmetic number, because the mean of its divisors is an integer number (6302790426).

Almost surely, 2^12605580851 is an apocalyptic number.

12605580851 is a deficient number, since it is larger than the sum of its proper divisors (1).

12605580851 is an equidigital number, since it uses as much as digits as its factorization.

12605580851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 12605580851 in words is "twelve billion, six hundred five million, five hundred eighty thousand, eight hundred fifty-one".