3405128189 has 2 divisors, whose sum is σ = 3405128190. Its totient is φ = 3405128188.

The previous prime is 3405128179. The next prime is 3405128299. The reversal of 3405128189 is 9818215043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1817743225 + 1587384964 = 42635^2 + 39842^2 .

It is a cyclic number.

It is not a de Polignac number, because 3405128189 - 2¹⁶ = 3405062653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3405128179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702564094 + 1702564095.

It is an arithmetic number, because the mean of its divisors is an integer number (1702564095).

Almost surely, 2^3405128189 is an apocalyptic number.

It is an amenable number.

3405128189 is a deficient number, since it is larger than the sum of its proper divisors (1).

3405128189 is an equidigital number, since it uses as much as digits as its factorization.

3405128189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 3405128189 is about 58353.4762374959. The cubic root of 3405128189 is about 1504.4502193821.

The spelling of 3405128189 in words is "three billion, four hundred five million, one hundred twenty-eight thousand, one hundred eighty-nine".