6311332681 has 2 divisors, whose sum is σ = 6311332682. Its totient is φ = 6311332680.

The previous prime is 6311332667. The next prime is 6311332717. The reversal of 6311332681 is 1862331136.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3364580025 + 2946752656 = 58005^2 + 54284^2 .

It is a cyclic number.

It is not a de Polignac number, because 6311332681 - 2⁹ = 6311332169 is a prime.

It is a super-3 number, since 3×6311332681³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (6311332661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3155666340 + 3155666341.

It is an arithmetic number, because the mean of its divisors is an integer number (3155666341).

Almost surely, 2^6311332681 is an apocalyptic number.

It is an amenable number.

6311332681 is a deficient number, since it is larger than the sum of its proper divisors (1).

6311332681 is an equidigital number, since it uses as much as digits as its factorization.

6311332681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 6311332681 is about 79443.8964364161. The cubic root of 6311332681 is about 1848.0215207143.

The spelling of 6311332681 in words is "six billion, three hundred eleven million, three hundred thirty-two thousand, six hundred eighty-one".