6393937441 has 2 divisors, whose sum is σ = 6393937442. Its totient is φ = 6393937440.

The previous prime is 6393937409. The next prime is 6393937499. The reversal of 6393937441 is 1447393936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4462774416 + 1931163025 = 66804^2 + 43945^2 .

It is a cyclic number.

It is not a de Polignac number, because 6393937441 - 2⁵ = 6393937409 is a prime.

It is not a weakly prime, because it can be changed into another prime (6393937241) 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, 3196968720 + 3196968721.

It is an arithmetic number, because the mean of its divisors is an integer number (3196968721).

Almost surely, 2^6393937441 is an apocalyptic number.

It is an amenable number.

6393937441 is a deficient number, since it is larger than the sum of its proper divisors (1).

6393937441 is an equidigital number, since it uses as much as digits as its factorization.

6393937441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 49.

The square root of 6393937441 is about 79962.1000287011. The cubic root of 6393937441 is about 1856.0491001900.

The spelling of 6393937441 in words is "six billion, three hundred ninety-three million, nine hundred thirty-seven thousand, four hundred forty-one".