6448344673 has 2 divisors, whose sum is σ = 6448344674. Its totient is φ = 6448344672.

The previous prime is 6448344671. The next prime is 6448344703. The reversal of 6448344673 is 3764438446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4828443169 + 1619901504 = 69487^2 + 40248^2 .

It is a cyclic number.

It is not a de Polignac number, because 6448344673 - 2¹ = 6448344671 is a prime.

It is a super-2 number, since 2×6448344673² = 83162298043614953858, which contains 22 as substring.

Together with 6448344671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6448344671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224172336 + 3224172337.

It is an arithmetic number, because the mean of its divisors is an integer number (3224172337).

Almost surely, 2^6448344673 is an apocalyptic number.

It is an amenable number.

6448344673 is a deficient number, since it is larger than the sum of its proper divisors (1).

6448344673 is an equidigital number, since it uses as much as digits as its factorization.

6448344673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864, while the sum is 49.

The square root of 6448344673 is about 80301.5857439939. The cubic root of 6448344673 is about 1861.2987300098.

The spelling of 6448344673 in words is "six billion, four hundred forty-eight million, three hundred forty-four thousand, six hundred seventy-three".