6448342739 has 2 divisors, whose sum is σ = 6448342740. Its totient is φ = 6448342738.

The previous prime is 6448342729. The next prime is 6448342741. The reversal of 6448342739 is 9372438446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6448342739 - 2⁴ = 6448342723 is a prime.

It is a super-2 number, since 2×6448342739² = 83162248159228044242, which contains 22 as substring.

Together with 6448342741, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6448342729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224171369 + 3224171370.

It is an arithmetic number, because the mean of its divisors is an integer number (3224171370).

Almost surely, 2^6448342739 is an apocalyptic number.

6448342739 is a deficient number, since it is larger than the sum of its proper divisors (1).

6448342739 is an equidigital number, since it uses as much as digits as its factorization.

6448342739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 50.

The square root of 6448342739 is about 80301.5737018896. The cubic root of 6448342739 is about 1861.2985439283.

The spelling of 6448342739 in words is "six billion, four hundred forty-eight million, three hundred forty-two thousand, seven hundred thirty-nine".