6244744013 has 2 divisors, whose sum is σ = 6244744014. Its totient is φ = 6244744012.

The previous prime is 6244743991. The next prime is 6244744031. The reversal of 6244744013 is 3104474426.

6244744013 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (6244744031) 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., 3816521284 + 2428222729 = 61778^2 + 49277^2 .

It is a cyclic number.

It is not a de Polignac number, because 6244744013 - 2⁶ = 6244743949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6244744063) 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, 3122372006 + 3122372007.

It is an arithmetic number, because the mean of its divisors is an integer number (3122372007).

Almost surely, 2^6244744013 is an apocalyptic number.

It is an amenable number.

6244744013 is a deficient number, since it is larger than the sum of its proper divisors (1).

6244744013 is an equidigital number, since it uses as much as digits as its factorization.

6244744013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 6244744013 is about 79023.6927319902. The cubic root of 6244744013 is about 1841.4992519312.

The spelling of 6244744013 in words is "six billion, two hundred forty-four million, seven hundred forty-four thousand, thirteen".