6366823703813 has 2 divisors, whose sum is σ = 6366823703814. Its totient is φ = 6366823703812.

The previous prime is 6366823703759. The next prime is 6366823703899. The reversal of 6366823703813 is 3183073286636.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6213737751169 + 153085952644 = 2492737^2 + 391262^2 .

It is a cyclic number.

It is not a de Polignac number, because 6366823703813 - 2⁴² = 1968777192709 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6366823763813) 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, 3183411851906 + 3183411851907.

It is an arithmetic number, because the mean of its divisors is an integer number (3183411851907).

Almost surely, 2^{6366823703813} is an apocalyptic number.

It is an amenable number.

6366823703813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6366823703813 is an equidigital number, since it uses as much as digits as its factorization.

6366823703813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15676416, while the sum is 56.

The spelling of 6366823703813 in words is "six trillion, three hundred sixty-six billion, eight hundred twenty-three million, seven hundred three thousand, eight hundred thirteen".