28033905896 has 32 divisors (see below), whose sum is σ = 55664097480. Its totient is φ = 13190400000.

The previous prime is 28033905827. The next prime is 28033905899. The reversal of 28033905896 is 69850933082.

It can be written as a sum of positive squares in 4 ways, for example, as 27945808900 + 88096996 = 167170^2 + 9386^2 .

It is not an unprimeable number, because it can be changed into a prime (28033905899) 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, 1234646 + ... + 1257146.

Almost surely, 2^28033905896 is an apocalyptic number.

It is an amenable number.

28033905896 is a deficient number, since it is larger than the sum of its proper divisors (27630191584).

28033905896 is a wasteful number, since it uses less digits than its factorization.

28033905896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31685 (or 31681 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 28033905896 in words is "twenty-eight billion, thirty-three million, nine hundred five thousand, eight hundred ninety-six".