28076706288 has 60 divisors (see below), whose sum is σ = 78686894520. Its totient is φ = 9345667968.

The previous prime is 28076706223. The next prime is 28076706289. The reversal of 28076706288 is 88260767082.

28076706288 is a `hidden beast` number, since 2 + 8 + 0 + 7 + 6 + 7 + 0 + 628 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28076706289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35406 + ... + 239597.

It is an arithmetic number, because the mean of its divisors is an integer number (1311448242).

Almost surely, 2^28076706288 is an apocalyptic number.

It is an amenable number.

28076706288 is an abundant number, since it is smaller than the sum of its proper divisors (50610188232).

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

28076706288 is a wasteful number, since it uses less digits than its factorization.

28076706288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275726 (or 275717 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 28076706288 in words is "twenty-eight billion, seventy-six million, seven hundred six thousand, two hundred eighty-eight".