28683993288 has 16 divisors (see below), whose sum is σ = 71709983280. Its totient is φ = 9561331088.

The previous prime is 28683993277. The next prime is 28683993329. The reversal of 28683993288 is 88239938682.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597583170 + ... + 597583217.

It is an arithmetic number, because the mean of its divisors is an integer number (4481873955).

Almost surely, 2^28683993288 is an apocalyptic number.

It is an amenable number.

28683993288 is an abundant number, since it is smaller than the sum of its proper divisors (43025989992).

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

28683993288 is a wasteful number, since it uses less digits than its factorization.

28683993288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195166396 (or 1195166392 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 66.

The spelling of 28683993288 in words is "twenty-eight billion, six hundred eighty-three million, nine hundred ninety-three thousand, two hundred eighty-eight".