4227817856 has 64 divisors (see below), whose sum is σ = 8965151280. Its totient is φ = 1979056128.

The previous prime is 4227817843. The next prime is 4227817861. The reversal of 4227817856 is 6587187224.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414935 + ... + 425001.

Almost surely, 2^4227817856 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 4227817856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4482575640).

4227817856 is an abundant number, since it is smaller than the sum of its proper divisors (4737333424).

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

4227817856 is a wasteful number, since it uses less digits than its factorization.

4227817856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10291 (or 10279 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 50.

The square root of 4227817856 is about 65021.6722024280. The cubic root of 4227817856 is about 1616.9828840803.

The spelling of 4227817856 in words is "four billion, two hundred twenty-seven million, eight hundred seventeen thousand, eight hundred fifty-six".