4188168920 has 32 divisors (see below), whose sum is σ = 10148256720. Its totient is φ = 1546400640.

The previous prime is 4188168899. The next prime is 4188168947. The reversal of 4188168920 is 298618814.

It is a happy number.

4188168920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4026566 + ... + 4027605.

Almost surely, 2^4188168920 is an apocalyptic number.

4188168920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4188168920 is an abundant number, since it is smaller than the sum of its proper divisors (5960087800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4188168920 is a wasteful number, since it uses less digits than its factorization.

4188168920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8054195 (or 8054191 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 47.

The square root of 4188168920 is about 64716.0638481668. The cubic root of 4188168920 is about 1611.9122527546.

The spelling of 4188168920 in words is "four billion, one hundred eighty-eight million, one hundred sixty-eight thousand, nine hundred twenty".