28728573803 has 8 divisors (see below), whose sum is σ = 28962217872. Its totient is φ = 28495277056.

The previous prime is 28728573791. The next prime is 28728573829. The reversal of 28728573803 is 30837582782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28728573803 - 2⁴ = 28728573787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28728573893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80576 + ... + 252882.

It is an arithmetic number, because the mean of its divisors is an integer number (3620277234).

Almost surely, 2^28728573803 is an apocalyptic number.

28728573803 is a deficient number, since it is larger than the sum of its proper divisors (233644069).

28728573803 is a wasteful number, since it uses less digits than its factorization.

28728573803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173661.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 28728573803 in words is "twenty-eight billion, seven hundred twenty-eight million, five hundred seventy-three thousand, eight hundred three".