28033578050 has 24 divisors (see below), whose sum is σ = 52188744900. Its totient is φ = 11203476480.

The previous prime is 28033578043. The next prime is 28033578059. The reversal of 28033578050 is 5087533082.

It can be written as a sum of positive squares in 6 ways, for example, as 4940824681 + 23092753369 = 70291^2 + 151963^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28033577989 and 28033578007.

It is not an unprimeable number, because it can be changed into a prime (28033578059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191855 + ... + 304754.

Almost surely, 2^28033578050 is an apocalyptic number.

28033578050 is a deficient number, since it is larger than the sum of its proper divisors (24155166850).

28033578050 is a wasteful number, since it uses less digits than its factorization.

28033578050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497750 (or 497745 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

It can be divided in two parts, 2803 and 3578050, that added together give a palindrome (3580853).

The spelling of 28033578050 in words is "twenty-eight billion, thirty-three million, five hundred seventy-eight thousand, fifty".