6867121673 has 2 divisors, whose sum is σ = 6867121674. Its totient is φ = 6867121672.

The previous prime is 6867121669. The next prime is 6867121717. The reversal of 6867121673 is 3761217686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3838050304 + 3029071369 = 61952^2 + 55037^2 .

It is a cyclic number.

It is not a de Polignac number, because 6867121673 - 2² = 6867121669 is a prime.

It is not a weakly prime, because it can be changed into another prime (6867021673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3433560836 + 3433560837.

It is an arithmetic number, because the mean of its divisors is an integer number (3433560837).

Almost surely, 2^6867121673 is an apocalyptic number.

It is an amenable number.

6867121673 is a deficient number, since it is larger than the sum of its proper divisors (1).

6867121673 is an equidigital number, since it uses as much as digits as its factorization.

6867121673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 47.

The square root of 6867121673 is about 82868.0980414055. The cubic root of 6867121673 is about 1900.7496278403.

The spelling of 6867121673 in words is "six billion, eight hundred sixty-seven million, one hundred twenty-one thousand, six hundred seventy-three".