3189889868 has 24 divisors (see below), whose sum is σ = 6150093264. Its totient is φ = 1435592000.

The previous prime is 3189889867. The next prime is 3189889873. The reversal of 3189889868 is 8689889813.

It is a junction number, because it is equal to n+sod(n) for n = 3189889798 and 3189889807.

It is not an unprimeable number, because it can be changed into a prime (3189889867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354455 + ... + 363342.

It is an arithmetic number, because the mean of its divisors is an integer number (256253886).

Almost surely, 2^3189889868 is an apocalyptic number.

It is an amenable number.

3189889868 is a deficient number, since it is larger than the sum of its proper divisors (2960203396).

3189889868 is a wasteful number, since it uses less digits than its factorization.

3189889868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717913 (or 717911 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 68.

The square root of 3189889868 is about 56479.1100142345. The cubic root of 3189889868 is about 1472.0590436649.

Subtracting 3189889868 from its reverse (8689889813), we obtain a palindrome (5499999945).

The spelling of 3189889868 in words is "three billion, one hundred eighty-nine million, eight hundred eighty-nine thousand, eight hundred sixty-eight".