6782116331 has 2 divisors, whose sum is σ = 6782116332. Its totient is φ = 6782116330.

The previous prime is 6782116321. The next prime is 6782116343. The reversal of 6782116331 is 1336112876.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6782116331 is a prime.

It is a super-2 number, since 2×6782116331² = 91994203854433803122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6782116321) 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, 3391058165 + 3391058166.

It is an arithmetic number, because the mean of its divisors is an integer number (3391058166).

Almost surely, 2^6782116331 is an apocalyptic number.

6782116331 is a deficient number, since it is larger than the sum of its proper divisors (1).

6782116331 is an equidigital number, since it uses as much as digits as its factorization.

6782116331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 6782116331 is about 82353.6054523419. The cubic root of 6782116331 is about 1892.8741700231.

The spelling of 6782116331 in words is "six billion, seven hundred eighty-two million, one hundred sixteen thousand, three hundred thirty-one".