4478168268 has 84 divisors (see below), whose sum is σ = 13428423120. Its totient is φ = 1279470816.

The previous prime is 4478168243. The next prime is 4478168269. The reversal of 4478168268 is 8628618744.

4478168268 is a `hidden beast` number, since 4 + 478 + 168 + 2 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (4478168269) 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 27 ways as a sum of consecutive naturals, for example, 89283 + ... + 130106.

It is an arithmetic number, because the mean of its divisors is an integer number (159862180).

Almost surely, 2^4478168268 is an apocalyptic number.

It is an amenable number.

4478168268 is an abundant number, since it is smaller than the sum of its proper divisors (8950254852).

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

4478168268 is a wasteful number, since it uses less digits than its factorization.

4478168268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219418 (or 219401 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 4478168268 is about 66919.1173581959. The cubic root of 4478168268 is about 1648.2894139930.

The spelling of 4478168268 in words is "four billion, four hundred seventy-eight million, one hundred sixty-eight thousand, two hundred sixty-eight".