28217548799 has 8 divisors (see below), whose sum is σ = 30891556992. Its totient is φ = 25561670040.

The previous prime is 28217548757. The next prime is 28217548811. The reversal of 28217548799 is 99784571282.

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 28217548799 - 2²⁰ = 28216500223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28217548729) 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, 4529099 + ... + 4535324.

It is an arithmetic number, because the mean of its divisors is an integer number (3861444624).

Almost surely, 2^28217548799 is an apocalyptic number.

28217548799 is a deficient number, since it is larger than the sum of its proper divisors (2674008193).

28217548799 is a wasteful number, since it uses less digits than its factorization.

28217548799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9064717.

The product of its digits is 20321280, while the sum is 62.

The spelling of 28217548799 in words is "twenty-eight billion, two hundred seventeen million, five hundred forty-eight thousand, seven hundred ninety-nine".