28280780303 has 4 divisors (see below), whose sum is σ = 28282254000. Its totient is φ = 28279306608.

The previous prime is 28280780273. The next prime is 28280780369. The reversal of 28280780303 is 30308708282.

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

It is a cyclic number.

It is not a de Polignac number, because 28280780303 - 2⁶ = 28280780239 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 (28280780393) 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 3 ways as a sum of consecutive naturals, for example, 707678 + ... + 746571.

It is an arithmetic number, because the mean of its divisors is an integer number (7070563500).

Almost surely, 2^28280780303 is an apocalyptic number.

28280780303 is a deficient number, since it is larger than the sum of its proper divisors (1473697).

28280780303 is a wasteful number, since it uses less digits than its factorization.

28280780303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473696.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 28280780303 in words is "twenty-eight billion, two hundred eighty million, seven hundred eighty thousand, three hundred three".