4801728641 has 4 divisors (see below), whose sum is σ = 4801918212. Its totient is φ = 4801539072.

The previous prime is 4801728619. The next prime is 4801728647. The reversal of 4801728641 is 1468271084.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4659427600 + 142301041 = 68260^2 + 11929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4801728641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4801728647) 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, 49616 + ... + 109841.

It is an arithmetic number, because the mean of its divisors is an integer number (1200479553).

Almost surely, 2^4801728641 is an apocalyptic number.

It is an amenable number.

4801728641 is a deficient number, since it is larger than the sum of its proper divisors (189571).

4801728641 is a wasteful number, since it uses less digits than its factorization.

4801728641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189570.

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 4801728641 is about 69294.5065715891. The cubic root of 4801728641 is about 1687.0678052281.

The spelling of 4801728641 in words is "four billion, eight hundred one million, seven hundred twenty-eight thousand, six hundred forty-one".