6801706067021 has 2 divisors, whose sum is σ = 6801706067022. Its totient is φ = 6801706067020.

The previous prime is 6801706066921. The next prime is 6801706067077. The reversal of 6801706067021 is 1207606071086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6631727145796 + 169978921225 = 2575214^2 + 412285^2 .

It is a cyclic number.

It is not a de Polignac number, because 6801706067021 - 2²⁶ = 6801638958157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6801706067081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400853033510 + 3400853033511.

It is an arithmetic number, because the mean of its divisors is an integer number (3400853033511).

Almost surely, 2^{6801706067021} is an apocalyptic number.

It is an amenable number.

6801706067021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6801706067021 is an equidigital number, since it uses as much as digits as its factorization.

6801706067021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 6801706067021 in words is "six trillion, eight hundred one billion, seven hundred six million, sixty-seven thousand, twenty-one".