6457686841 has 2 divisors, whose sum is σ = 6457686842. Its totient is φ = 6457686840.

The previous prime is 6457686817. The next prime is 6457686953. The reversal of 6457686841 is 1486867546.

6457686841 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6336796816 + 120890025 = 79604^2 + 10995^2 .

It is a cyclic number.

It is not a de Polignac number, because 6457686841 - 2⁹ = 6457686329 is a prime.

It is not a weakly prime, because it can be changed into another prime (6457684841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3228843420 + 3228843421.

It is an arithmetic number, because the mean of its divisors is an integer number (3228843421).

Almost surely, 2^6457686841 is an apocalyptic number.

It is an amenable number.

6457686841 is a deficient number, since it is larger than the sum of its proper divisors (1).

6457686841 is an equidigital number, since it uses as much as digits as its factorization.

6457686841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 55.

The square root of 6457686841 is about 80359.7339530190. The cubic root of 6457686841 is about 1862.1971608332.

The spelling of 6457686841 in words is "six billion, four hundred fifty-seven million, six hundred eighty-six thousand, eight hundred forty-one".