6648841313 has 2 divisors, whose sum is σ = 6648841314. Its totient is φ = 6648841312.

The previous prime is 6648841291. The next prime is 6648841327. The reversal of 6648841313 is 3131488466.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5777824144 + 871017169 = 76012^2 + 29513^2 .

It is a cyclic number.

It is not a de Polignac number, because 6648841313 - 2¹⁴ = 6648824929 is a prime.

It is not a weakly prime, because it can be changed into another prime (6648841813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3324420656 + 3324420657.

It is an arithmetic number, because the mean of its divisors is an integer number (3324420657).

Almost surely, 2^6648841313 is an apocalyptic number.

It is an amenable number.

6648841313 is a deficient number, since it is larger than the sum of its proper divisors (1).

6648841313 is an equidigital number, since it uses as much as digits as its factorization.

6648841313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The square root of 6648841313 is about 81540.4274761912. The cubic root of 6648841313 is about 1880.3931304953.

The spelling of 6648841313 in words is "six billion, six hundred forty-eight million, eight hundred forty-one thousand, three hundred thirteen".