28163074884 has 48 divisors (see below), whose sum is σ = 75143913600. Its totient is φ = 8042052096.

The previous prime is 28163074883. The next prime is 28163074903. The reversal of 28163074884 is 48847036182.

It is a super-2 number, since 2×28163074884² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28163074883) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 56572 + ... + 243980.

It is an arithmetic number, because the mean of its divisors is an integer number (1565498200).

Almost surely, 2^28163074884 is an apocalyptic number.

It is an amenable number.

28163074884 is an abundant number, since it is smaller than the sum of its proper divisors (46980838716).

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

28163074884 is a wasteful number, since it uses less digits than its factorization.

28163074884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189212 (or 189210 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 28163074884 in words is "twenty-eight billion, one hundred sixty-three million, seventy-four thousand, eight hundred eighty-four".