28814309803 has 4 divisors (see below), whose sum is σ = 28816926840. Its totient is φ = 28811692768.

The previous prime is 28814309801. The next prime is 28814309813. The reversal of 28814309803 is 30890341882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30890341882 = 2 ⋅15445170941.

It is a cyclic number.

It is not a de Polignac number, because 28814309803 - 2¹ = 28814309801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28814309801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1291933 + ... + 1314046.

It is an arithmetic number, because the mean of its divisors is an integer number (7204231710).

Almost surely, 2^28814309803 is an apocalyptic number.

28814309803 is a deficient number, since it is larger than the sum of its proper divisors (2617037).

28814309803 is a wasteful number, since it uses less digits than its factorization.

28814309803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617036.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 28814309803 in words is "twenty-eight billion, eight hundred fourteen million, three hundred nine thousand, eight hundred three".