4427818668 has 288 divisors, whose sum is σ = 14444591616. Its totient is φ = 1154829312.

The previous prime is 4427818639. The next prime is 4427818673. The reversal of 4427818668 is 8668187244.

4427818668 is a `hidden beast` number, since 4 + 427 + 81 + 86 + 68 = 666.

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

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 9994855 + ... + 9995297.

It is an arithmetic number, because the mean of its divisors is an integer number (50154832).

Almost surely, 2^4427818668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4427818668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7222295808).

4427818668 is an abundant number, since it is smaller than the sum of its proper divisors (10016772948).

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

4427818668 is a wasteful number, since it uses less digits than its factorization.

4427818668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 581 counting only the distinct ones).

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

The square root of 4427818668 is about 66541.8565115221. The cubic root of 4427818668 is about 1642.0886866495.

The spelling of 4427818668 in words is "four billion, four hundred twenty-seven million, eight hundred eighteen thousand, six hundred sixty-eight".