28871183824 has 20 divisors (see below), whose sum is σ = 63929050144. Its totient is φ = 12373364448.

The previous prime is 28871183819. The next prime is 28871183833. The reversal of 28871183824 is 42838117882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128889102 + ... + 128889325.

Almost surely, 2^28871183824 is an apocalyptic number.

It is an amenable number.

28871183824 is an abundant number, since it is smaller than the sum of its proper divisors (35057866320).

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

28871183824 is a wasteful number, since it uses less digits than its factorization.

28871183824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257778442 (or 257778436 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 52.

The spelling of 28871183824 in words is "twenty-eight billion, eight hundred seventy-one million, one hundred eighty-three thousand, eight hundred twenty-four".