12027855803009 has 2 divisors, whose sum is σ = 12027855803010. Its totient is φ = 12027855803008.

The previous prime is 12027855802961. The next prime is 12027855803023. The reversal of 12027855803009 is 90030855872021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10578788775025 + 1449067027984 = 3252505^2 + 1203772^2 .

It is a cyclic number.

It is not a de Polignac number, because 12027855803009 - 2²⁸ = 12027587367553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12027855803309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6013927901504 + 6013927901505.

It is an arithmetic number, because the mean of its divisors is an integer number (6013927901505).

Almost surely, 2^{12027855803009} is an apocalyptic number.

It is an amenable number.

12027855803009 is a deficient number, since it is larger than the sum of its proper divisors (1).

12027855803009 is an equidigital number, since it uses as much as digits as its factorization.

12027855803009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 12027855803009 in words is "twelve trillion, twenty-seven billion, eight hundred fifty-five million, eight hundred three thousand, nine".