28338885203 has 4 divisors (see below), whose sum is σ = 28354017288. Its totient is φ = 28323753120.

The previous prime is 28338885167. The next prime is 28338885209. The reversal of 28338885203 is 30258883382.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28338885203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28338885209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7563233 + ... + 7566978.

It is an arithmetic number, because the mean of its divisors is an integer number (7088504322).

Almost surely, 2^28338885203 is an apocalyptic number.

28338885203 is a deficient number, since it is larger than the sum of its proper divisors (15132085).

28338885203 is a wasteful number, since it uses less digits than its factorization.

28338885203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15132084.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 28338885203 in words is "twenty-eight billion, three hundred thirty-eight million, eight hundred eighty-five thousand, two hundred three".