4881640056 has 64 divisors (see below), whose sum is σ = 12925430400. Its totient is φ = 1532089728.

The previous prime is 4881639979. The next prime is 4881640063. The reversal of 4881640056 is 6500461884.

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 15 ways as a sum of consecutive naturals, for example, 41490 + ... + 107166.

It is an arithmetic number, because the mean of its divisors is an integer number (201959850).

Almost surely, 2^4881640056 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 4881640056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6462715200).

4881640056 is an abundant number, since it is smaller than the sum of its proper divisors (8043790344).

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

4881640056 is a wasteful number, since it uses less digits than its factorization.

4881640056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65868 (or 65864 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 4881640056 is about 69868.7344668558. The cubic root of 4881640056 is about 1696.3752127225.

The spelling of 4881640056 in words is "four billion, eight hundred eighty-one million, six hundred forty thousand, fifty-six".