28282728283 has 8 divisors (see below), whose sum is σ = 29956294800. Its totient is φ = 26610259200.

The previous prime is 28282728277. The next prime is 28282728323. The reversal of 28282728283 is 38282728282.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28282728283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28282728283.

It is not an unprimeable number, because it can be changed into a prime (28282728223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220993 + ... + 324658.

It is an arithmetic number, because the mean of its divisors is an integer number (3744536850).

Almost surely, 2^28282728283 is an apocalyptic number.

28282728283 is a deficient number, since it is larger than the sum of its proper divisors (1673566517).

28282728283 is a wasteful number, since it uses less digits than its factorization.

28282728283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548717.

The product of its digits is 2752512, while the sum is 52.

Subtracting 28282728283 from its reverse (38282728282), we obtain a palindrome (9999999999).

The spelling of 28282728283 in words is "twenty-eight billion, two hundred eighty-two million, seven hundred twenty-eight thousand, two hundred eighty-three".