4878561222 has 48 divisors (see below), whose sum is σ = 10867802400. Its totient is φ = 1580501376.

The previous prime is 4878561209. The next prime is 4878561229. The reversal of 4878561222 is 2221658784.

4878561222 is a `hidden beast` number, since 4 + 8 + 7 + 8 + 5 + 612 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4878561229) 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 23 ways as a sum of consecutive naturals, for example, 695143 + ... + 702125.

It is an arithmetic number, because the mean of its divisors is an integer number (226412550).

Almost surely, 2^4878561222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4878561222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5433901200).

4878561222 is an abundant number, since it is smaller than the sum of its proper divisors (5989241178).

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

4878561222 is a wasteful number, since it uses less digits than its factorization.

4878561222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8077 (or 8074 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 4878561222 is about 69846.6980035563. The cubic root of 4878561222 is about 1696.0185050027.

The spelling of 4878561222 in words is "four billion, eight hundred seventy-eight million, five hundred sixty-one thousand, two hundred twenty-two".