6728593789 has 2 divisors, whose sum is σ = 6728593790. Its totient is φ = 6728593788.

The previous prime is 6728593637. The next prime is 6728593799. The reversal of 6728593789 is 9873958276.

6728593789 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., 4954752100 + 1773841689 = 70390^2 + 42117^2 .

It is a cyclic number.

It is not a de Polignac number, because 6728593789 - 2¹⁹ = 6728069501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6728593789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6728593799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3364296894 + 3364296895.

It is an arithmetic number, because the mean of its divisors is an integer number (3364296895).

Almost surely, 2^6728593789 is an apocalyptic number.

It is an amenable number.

6728593789 is a deficient number, since it is larger than the sum of its proper divisors (1).

6728593789 is an equidigital number, since it uses as much as digits as its factorization.

6728593789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 64.

The square root of 6728593789 is about 82028.0061259568. The cubic root of 6728593789 is about 1887.8816714187.

The spelling of 6728593789 in words is "six billion, seven hundred twenty-eight million, five hundred ninety-three thousand, seven hundred eighty-nine".