4681944728 has 16 divisors (see below), whose sum is σ = 8834563680. Its totient is φ = 2326061088.

The previous prime is 4681944727. The next prime is 4681944737. The reversal of 4681944728 is 8274491864.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 4681944728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4681944727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862576 + ... + 1865087.

It is an arithmetic number, because the mean of its divisors is an integer number (552160230).

Almost surely, 2^4681944728 is an apocalyptic number.

It is an amenable number.

4681944728 is a deficient number, since it is larger than the sum of its proper divisors (4152618952).

4681944728 is a wasteful number, since it uses less digits than its factorization.

4681944728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727826 (or 3727822 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 53.

The square root of 4681944728 is about 68424.7376903997. The cubic root of 4681944728 is about 1672.9209792580.

The spelling of 4681944728 in words is "four billion, six hundred eighty-one million, nine hundred forty-four thousand, seven hundred twenty-eight".