6804172789 has 2 divisors, whose sum is σ = 6804172790. Its totient is φ = 6804172788.

The previous prime is 6804172741. The next prime is 6804172801. The reversal of 6804172789 is 9872714086.

6804172789 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., 5906691025 + 897481764 = 76855^2 + 29958^2 .

It is a cyclic number.

It is not a de Polignac number, because 6804172789 - 2¹¹ = 6804170741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6804172709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3402086394 + 3402086395.

It is an arithmetic number, because the mean of its divisors is an integer number (3402086395).

Almost surely, 2^6804172789 is an apocalyptic number.

It is an amenable number.

6804172789 is a deficient number, since it is larger than the sum of its proper divisors (1).

6804172789 is an equidigital number, since it uses as much as digits as its factorization.

6804172789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 6804172789 is about 82487.4098817510. The cubic root of 6804172789 is about 1894.9239196882.

The spelling of 6804172789 in words is "six billion, eight hundred four million, one hundred seventy-two thousand, seven hundred eighty-nine".