28331068384 has 48 divisors (see below), whose sum is σ = 56723088240. Its totient is φ = 13925468160.

The previous prime is 28331068343. The next prime is 28331068399. The reversal of 28331068384 is 48386013382.

It is a congruent number.

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, 5089987 + ... + 5095549.

It is an arithmetic number, because the mean of its divisors is an integer number (1181731005).

Almost surely, 2^28331068384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28331068384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28361544120).

28331068384 is an abundant number, since it is smaller than the sum of its proper divisors (28392019856).

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

28331068384 is a wasteful number, since it uses less digits than its factorization.

28331068384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243 (or 8235 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 28331068384 in words is "twenty-eight billion, three hundred thirty-one million, sixty-eight thousand, three hundred eighty-four".