28805855850882 has 48 divisors (see below), whose sum is σ = 68128780269888. Its totient is φ = 8723635446240.

The previous prime is 28805855850857. The next prime is 28805855850931.

28805855850882 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 28805855850882.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44777998 + ... + 45416745.

It is an arithmetic number, because the mean of its divisors is an integer number (1419349588956).

Almost surely, 2^{28805855850882} is an apocalyptic number.

28805855850882 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28805855850882 is an abundant number, since it is smaller than the sum of its proper divisors (39322924419006).

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

28805855850882 is a wasteful number, since it uses less digits than its factorization.

28805855850882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90196375 (or 90196372 counting only the distinct ones).

The product of its (nonzero) digits is 655360000, while the sum is 72.

The spelling of 28805855850882 in words is "twenty-eight trillion, eight hundred five billion, eight hundred fifty-five million, eight hundred fifty thousand, eight hundred eighty-two".