28776883368 has 32 divisors (see below), whose sum is σ = 71961140160. Its totient is φ = 9589770240.

The previous prime is 28776883327. The next prime is 28776883379. The reversal of 28776883368 is 86338867782.

It is a junction number, because it is equal to n+sod(n) for n = 28776883299 and 28776883308.

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 7 ways as a sum of consecutive naturals, for example, 63513 + ... + 248168.

It is an arithmetic number, because the mean of its divisors is an integer number (2248785630).

Almost surely, 2^28776883368 is an apocalyptic number.

It is an amenable number.

28776883368 is an abundant number, since it is smaller than the sum of its proper divisors (43184256792).

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

28776883368 is a wasteful number, since it uses less digits than its factorization.

28776883368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315537 (or 315533 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 66.

The spelling of 28776883368 in words is "twenty-eight billion, seven hundred seventy-six million, eight hundred eighty-three thousand, three hundred sixty-eight".