6344664377 has 2 divisors, whose sum is σ = 6344664378. Its totient is φ = 6344664376.

The previous prime is 6344664371. The next prime is 6344664413. The reversal of 6344664377 is 7734664436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4322273536 + 2022390841 = 65744^2 + 44971^2 .

It is a cyclic number.

It is not a de Polignac number, because 6344664377 - 2⁸ = 6344664121 is a prime.

It is not a weakly prime, because it can be changed into another prime (6344664371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3172332188 + 3172332189.

It is an arithmetic number, because the mean of its divisors is an integer number (3172332189).

Almost surely, 2^6344664377 is an apocalyptic number.

It is an amenable number.

6344664377 is a deficient number, since it is larger than the sum of its proper divisors (1).

6344664377 is an equidigital number, since it uses as much as digits as its factorization.

6344664377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 50.

The square root of 6344664377 is about 79653.4015406750. The cubic root of 6344664377 is about 1851.2690953114.

The spelling of 6344664377 in words is "six billion, three hundred forty-four million, six hundred sixty-four thousand, three hundred seventy-seven".