6356718800849 has 2 divisors, whose sum is σ = 6356718800850. Its totient is φ = 6356718800848.

The previous prime is 6356718800759. The next prime is 6356718800851. The reversal of 6356718800849 is 9480088176536.

6356718800849 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6324505730449 + 32213070400 = 2514857^2 + 179480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6356718800849 is a prime.

Together with 6356718800851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6356718800449) 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, 3178359400424 + 3178359400425.

It is an arithmetic number, because the mean of its divisors is an integer number (3178359400425).

Almost surely, 2^{6356718800849} is an apocalyptic number.

It is an amenable number.

6356718800849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6356718800849 is an equidigital number, since it uses as much as digits as its factorization.

6356718800849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69672960, while the sum is 65.

The spelling of 6356718800849 in words is "six trillion, three hundred fifty-six billion, seven hundred eighteen million, eight hundred thousand, eight hundred forty-nine".