11804663513 has 2 divisors, whose sum is σ = 11804663514. Its totient is φ = 11804663512.

The previous prime is 11804663389. The next prime is 11804663531. The reversal of 11804663513 is 31536640811.

Together with next prime (11804663531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5966481049 + 5838182464 = 77243^2 + 76408^2 .

It is a cyclic number.

It is not a de Polignac number, because 11804663513 - 2⁸ = 11804663257 is a prime.

It is not a weakly prime, because it can be changed into another prime (11804663573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5902331756 + 5902331757.

It is an arithmetic number, because the mean of its divisors is an integer number (5902331757).

Almost surely, 2^11804663513 is an apocalyptic number.

It is an amenable number.

11804663513 is a deficient number, since it is larger than the sum of its proper divisors (1).

11804663513 is an equidigital number, since it uses as much as digits as its factorization.

11804663513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 11804663513 in words is "eleven billion, eight hundred four million, six hundred sixty-three thousand, five hundred thirteen".