12585780019 has 2 divisors, whose sum is σ = 12585780020. Its totient is φ = 12585780018.

The previous prime is 12585779957. The next prime is 12585780023. The reversal of 12585780019 is 91008758521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12585780019 - 2⁷ = 12585779891 is a prime.

It is a super-2 number, since 2×12585780019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12585780049) 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, 6292890009 + 6292890010.

It is an arithmetic number, because the mean of its divisors is an integer number (6292890010).

Almost surely, 2^12585780019 is an apocalyptic number.

12585780019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12585780019 is an equidigital number, since it uses as much as digits as its factorization.

12585780019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 46.

The spelling of 12585780019 in words is "twelve billion, five hundred eighty-five million, seven hundred eighty thousand, nineteen".