6818663041 has 2 divisors, whose sum is σ = 6818663042. Its totient is φ = 6818663040.

The previous prime is 6818663003. The next prime is 6818663083. The reversal of 6818663041 is 1403668186.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6252223041 + 566440000 = 79071^2 + 23800^2 .

It is a cyclic number.

It is not a de Polignac number, because 6818663041 - 2⁷ = 6818662913 is a prime.

It is not a weakly prime, because it can be changed into another prime (6818663441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3409331520 + 3409331521.

It is an arithmetic number, because the mean of its divisors is an integer number (3409331521).

Almost surely, 2^6818663041 is an apocalyptic number.

It is an amenable number.

6818663041 is a deficient number, since it is larger than the sum of its proper divisors (1).

6818663041 is an equidigital number, since it uses as much as digits as its factorization.

6818663041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 6818663041 is about 82575.1962819344. The cubic root of 6818663041 is about 1896.2681172081.

The spelling of 6818663041 in words is "six billion, eight hundred eighteen million, six hundred sixty-three thousand, forty-one".