3189772189 has 4 divisors (see below), whose sum is σ = 3205964124. Its totient is φ = 3173580256.

The previous prime is 3189772133. The next prime is 3189772213. The reversal of 3189772189 is 9812779813.

3189772189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9812779813 = 41 ⋅239336093.

It can be written as a sum of positive squares in 2 ways, for example, as 3029952025 + 159820164 = 55045^2 + 12642^2 .

It is a cyclic number.

It is not a de Polignac number, because 3189772189 - 2⁹ = 3189771677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3189770189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8095672 + ... + 8096065.

It is an arithmetic number, because the mean of its divisors is an integer number (801491031).

Almost surely, 2^3189772189 is an apocalyptic number.

It is an amenable number.

3189772189 is a deficient number, since it is larger than the sum of its proper divisors (16191935).

3189772189 is a wasteful number, since it uses less digits than its factorization.

3189772189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16191934.

The product of its digits is 1524096, while the sum is 55.

The square root of 3189772189 is about 56478.0682123601. The cubic root of 3189772189 is about 1472.0409414133.

The spelling of 3189772189 in words is "three billion, one hundred eighty-nine million, seven hundred seventy-two thousand, one hundred eighty-nine".