4189556668 has 12 divisors (see below), whose sum is σ = 7998244632. Its totient is φ = 1904343920.

The previous prime is 4189556663. The next prime is 4189556729. The reversal of 4189556668 is 8666559814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4189556663) 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, 47608555 + ... + 47608642.

It is an arithmetic number, because the mean of its divisors is an integer number (666520386).

Almost surely, 2^4189556668 is an apocalyptic number.

It is an amenable number.

4189556668 is a deficient number, since it is larger than the sum of its proper divisors (3808687964).

4189556668 is a wasteful number, since it uses less digits than its factorization.

4189556668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95217212 (or 95217210 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 58.

The square root of 4189556668 is about 64726.7847803365. The cubic root of 4189556668 is about 1612.0902685752.

The spelling of 4189556668 in words is "four billion, one hundred eighty-nine million, five hundred fifty-six thousand, six hundred sixty-eight".