28845231552 has 84 divisors (see below), whose sum is σ = 83498426856. Its totient is φ = 9519859200.

The previous prime is 28845231551. The next prime is 28845231581. The reversal of 28845231552 is 25513254882.

28845231552 is a `hidden beast` number, since 28 + 8 + 45 + 2 + 31 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28845231498 and 28845231507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28845231551) 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 11 ways as a sum of consecutive naturals, for example, 189738 + ... + 306089.

Almost surely, 2^28845231552 is an apocalyptic number.

It is an amenable number.

28845231552 is an abundant number, since it is smaller than the sum of its proper divisors (54653195304).

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

28845231552 is a wasteful number, since it uses less digits than its factorization.

28845231552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495946 (or 495933 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The spelling of 28845231552 in words is "twenty-eight billion, eight hundred forty-five million, two hundred thirty-one thousand, five hundred fifty-two".