6440303719723 has 2 divisors, whose sum is σ = 6440303719724. Its totient is φ = 6440303719722.

The previous prime is 6440303719627. The next prime is 6440303719739. The reversal of 6440303719723 is 3279173030446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6440303719723 - 2³⁷ = 6302864766251 is a prime.

It is not a weakly prime, because it can be changed into another prime (6440303717723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3220151859861 + 3220151859862.

It is an arithmetic number, because the mean of its divisors is an integer number (3220151859862).

Almost surely, 2^{6440303719723} is an apocalyptic number.

6440303719723 is a deficient number, since it is larger than the sum of its proper divisors (1).

6440303719723 is an equidigital number, since it uses as much as digits as its factorization.

6440303719723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 49.

The spelling of 6440303719723 in words is "six trillion, four hundred forty billion, three hundred three million, seven hundred nineteen thousand, seven hundred twenty-three".