28321075233 has 48 divisors (see below), whose sum is σ = 47364557760. Its totient is φ = 16260773760.

The previous prime is 28321075147. The next prime is 28321075247. The reversal of 28321075233 is 33257012382.

28321075233 is a `hidden beast` number, since 28 + 3 + 2 + 107 + 523 + 3 = 666.

It is not a de Polignac number, because 28321075233 - 2¹⁴ = 28321058849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28321075033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 165385 + ... + 289817.

It is an arithmetic number, because the mean of its divisors is an integer number (986761620).

Almost surely, 2^28321075233 is an apocalyptic number.

It is an amenable number.

28321075233 is a deficient number, since it is larger than the sum of its proper divisors (19043482527).

28321075233 is a wasteful number, since it uses less digits than its factorization.

28321075233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124491 (or 124466 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 28321075233 in words is "twenty-eight billion, three hundred twenty-one million, seventy-five thousand, two hundred thirty-three".