6485648839 has 2 divisors, whose sum is σ = 6485648840. Its totient is φ = 6485648838.

The previous prime is 6485648831. The next prime is 6485648861. The reversal of 6485648839 is 9388465846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6485648839 - 2³ = 6485648831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6485648831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3242824419 + 3242824420.

It is an arithmetic number, because the mean of its divisors is an integer number (3242824420).

Almost surely, 2^6485648839 is an apocalyptic number.

6485648839 is a deficient number, since it is larger than the sum of its proper divisors (1).

6485648839 is an equidigital number, since it uses as much as digits as its factorization.

6485648839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39813120, while the sum is 61.

The square root of 6485648839 is about 80533.5261800947. The cubic root of 6485648839 is about 1864.8810825331.

The spelling of 6485648839 in words is "six billion, four hundred eighty-five million, six hundred forty-eight thousand, eight hundred thirty-nine".