6688134073 has 2 divisors, whose sum is σ = 6688134074. Its totient is φ = 6688134072.

The previous prime is 6688133989. The next prime is 6688134127. The reversal of 6688134073 is 3704318866.

6688134073 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., 4913028649 + 1775105424 = 70093^2 + 42132^2 .

It is a cyclic number.

It is not a de Polignac number, because 6688134073 - 2⁹ = 6688133561 is a prime.

It is a super-2 number, since 2×6688134073² = 89462274756847138658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6688135073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3344067036 + 3344067037.

It is an arithmetic number, because the mean of its divisors is an integer number (3344067037).

Almost surely, 2^6688134073 is an apocalyptic number.

It is an amenable number.

6688134073 is a deficient number, since it is larger than the sum of its proper divisors (1).

6688134073 is an equidigital number, since it uses as much as digits as its factorization.

6688134073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 6688134073 is about 81781.0129125337. The cubic root of 6688134073 is about 1884.0900535334.

The spelling of 6688134073 in words is "six billion, six hundred eighty-eight million, one hundred thirty-four thousand, seventy-three".