448643346839 has 2 divisors, whose sum is σ = 448643346840. Its totient is φ = 448643346838.

The previous prime is 448643346821. The next prime is 448643346881. The reversal of 448643346839 is 938643346844.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 448643346839 - 2³² = 444348379543 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448643346439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224321673419 + 224321673420.

It is an arithmetic number, because the mean of its divisors is an integer number (224321673420).

Almost surely, 2^448643346839 is an apocalyptic number.

448643346839 is a deficient number, since it is larger than the sum of its proper divisors (1).

448643346839 is an equidigital number, since it uses as much as digits as its factorization.

448643346839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 143327232, while the sum is 62.

The spelling of 448643346839 in words is "four hundred forty-eight billion, six hundred forty-three million, three hundred forty-six thousand, eight hundred thirty-nine".