6828664438069 has 2 divisors, whose sum is σ = 6828664438070. Its totient is φ = 6828664438068.

The previous prime is 6828664438061. The next prime is 6828664438087. The reversal of 6828664438069 is 9608344668286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6674792607844 + 153871830225 = 2583562^2 + 392265^2 .

It is a cyclic number.

It is not a de Polignac number, because 6828664438069 - 2³ = 6828664438061 is a prime.

It is a super-2 number, since 2×6828664438069² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6828664437989 and 6828664438007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6828664438061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3414332219034 + 3414332219035.

It is an arithmetic number, because the mean of its divisors is an integer number (3414332219035).

Almost surely, 2^{6828664438069} is an apocalyptic number.

It is an amenable number.

6828664438069 is a deficient number, since it is larger than the sum of its proper divisors (1).

6828664438069 is an equidigital number, since it uses as much as digits as its factorization.

6828664438069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 573308928, while the sum is 70.

The spelling of 6828664438069 in words is "six trillion, eight hundred twenty-eight billion, six hundred sixty-four million, four hundred thirty-eight thousand, sixty-nine".