28802789712 has 120 divisors (see below), whose sum is σ = 82980072864. Its totient is φ = 9319594752.

The previous prime is 28802789707. The next prime is 28802789723. The reversal of 28802789712 is 21798720882.

28802789712 is a `hidden beast` number, since 288 + 0 + 278 + 97 + 1 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2354203 + ... + 2366405.

Almost surely, 2^28802789712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28802789712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41490036432).

28802789712 is an abundant number, since it is smaller than the sum of its proper divisors (54177283152).

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

28802789712 is a wasteful number, since it uses less digits than its factorization.

28802789712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12697 (or 12688 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The spelling of 28802789712 in words is "twenty-eight billion, eight hundred two million, seven hundred eighty-nine thousand, seven hundred twelve".