4728685823 has 4 divisors (see below), whose sum is σ = 4748307168. Its totient is φ = 4709064480.

The previous prime is 4728685783. The next prime is 4728685849. The reversal of 4728685823 is 3285868274.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4728685823 is a prime.

It is a super-2 number, since 2×4728685823² = 44720939225282374658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4728685873) 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, 9810311 + ... + 9810792.

It is an arithmetic number, because the mean of its divisors is an integer number (1187076792).

Almost surely, 2^4728685823 is an apocalyptic number.

4728685823 is a deficient number, since it is larger than the sum of its proper divisors (19621345).

4728685823 is a wasteful number, since it uses less digits than its factorization.

4728685823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19621344.

The product of its digits is 5160960, while the sum is 53.

The square root of 4728685823 is about 68765.4406151811. The cubic root of 4728685823 is about 1678.4696266404.

The spelling of 4728685823 in words is "four billion, seven hundred twenty-eight million, six hundred eighty-five thousand, eight hundred twenty-three".