6731000681 has 2 divisors, whose sum is σ = 6731000682. Its totient is φ = 6731000680.

The previous prime is 6731000599. The next prime is 6731000687. The reversal of 6731000681 is 1860001376.

6731000681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5385211456 + 1345789225 = 73384^2 + 36685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6731000681 is a prime.

It is a super-2 number, since 2×6731000681² = 90612740335244927522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6731000687) 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, 3365500340 + 3365500341.

It is an arithmetic number, because the mean of its divisors is an integer number (3365500341).

Almost surely, 2^6731000681 is an apocalyptic number.

It is an amenable number.

6731000681 is a deficient number, since it is larger than the sum of its proper divisors (1).

6731000681 is an equidigital number, since it uses as much as digits as its factorization.

6731000681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 6731000681 is about 82042.6759741538. The cubic root of 6731000681 is about 1888.1067499288.

The spelling of 6731000681 in words is "six billion, seven hundred thirty-one million, six hundred eighty-one", and thus it is an aban number.