4981805728 has 48 divisors (see below), whose sum is σ = 9977748480. Its totient is φ = 2448066816.

The previous prime is 4981805707. The next prime is 4981805747. The reversal of 4981805728 is 8275081894.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559326 + ... + 568162.

It is an arithmetic number, because the mean of its divisors is an integer number (207869760).

Almost surely, 2^4981805728 is an apocalyptic number.

It is an amenable number.

4981805728 is an abundant number, since it is smaller than the sum of its proper divisors (4995942752).

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

4981805728 is a wasteful number, since it uses less digits than its factorization.

4981805728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9149 (or 9141 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 52.

The square root of 4981805728 is about 70581.9079368077. The cubic root of 4981805728 is about 1707.8993079417.

The spelling of 4981805728 in words is "four billion, nine hundred eighty-one million, eight hundred five thousand, seven hundred twenty-eight".