6448344787 has 2 divisors, whose sum is σ = 6448344788. Its totient is φ = 6448344786.

The previous prime is 6448344739. The next prime is 6448344821. The reversal of 6448344787 is 7874438446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6448344787 - 2¹¹ = 6448342739 is a prime.

It is not a weakly prime, because it can be changed into another prime (6448344187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224172393 + 3224172394.

It is an arithmetic number, because the mean of its divisors is an integer number (3224172394).

Almost surely, 2^6448344787 is an apocalyptic number.

6448344787 is a deficient number, since it is larger than the sum of its proper divisors (1).

6448344787 is an equidigital number, since it uses as much as digits as its factorization.

6448344787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14450688, while the sum is 55.

The square root of 6448344787 is about 80301.5864538180. The cubic root of 6448344787 is about 1861.2987409784.

The spelling of 6448344787 in words is "six billion, four hundred forty-eight million, three hundred forty-four thousand, seven hundred eighty-seven".