28782938592 has 36 divisors (see below), whose sum is σ = 81851482440. Its totient is φ = 9594312768.

The previous prime is 28782938581. The next prime is 28782938593. The reversal of 28782938592 is 29583928782.

28782938592 is a `hidden beast` number, since 2 + 8 + 7 + 8 + 2 + 9 + 38 + 592 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28782938593) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 49970092 + ... + 49970667.

It is an arithmetic number, because the mean of its divisors is an integer number (2273652290).

Almost surely, 2^28782938592 is an apocalyptic number.

It is an amenable number.

28782938592 is an abundant number, since it is smaller than the sum of its proper divisors (53068543848).

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

28782938592 is a wasteful number, since it uses less digits than its factorization.

28782938592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99940775 (or 99940764 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 28782938592 in words is "twenty-eight billion, seven hundred eighty-two million, nine hundred thirty-eight thousand, five hundred ninety-two".