28320833028 has 24 divisors (see below), whose sum is σ = 66124813888. Its totient is φ = 9434153376.

The previous prime is 28320832993. The next prime is 28320833039. The reversal of 28320833028 is 82033802382.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746251 + ... + 783282.

Almost surely, 2^28320833028 is an apocalyptic number.

It is an amenable number.

28320833028 is an abundant number, since it is smaller than the sum of its proper divisors (37803980860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28320833028 is a wasteful number, since it uses less digits than its factorization.

28320833028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531083 (or 1531081 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 28320833028 in words is "twenty-eight billion, three hundred twenty million, eight hundred thirty-three thousand, twenty-eight".