28334359872 has 336 divisors, whose sum is σ = 103664625792. Its totient is φ = 7472424960.

The previous prime is 28334359789. The next prime is 28334359913. The reversal of 28334359872 is 27895343382.

28334359872 is a `hidden beast` number, since 2 + 8 + 3 + 3 + 43 + 598 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1405222 + ... + 1425242.

It is an arithmetic number, because the mean of its divisors is an integer number (308525672).

Almost surely, 2^28334359872 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 28334359872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51832312896).

28334359872 is an abundant number, since it is smaller than the sum of its proper divisors (75330265920).

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

28334359872 is a wasteful number, since it uses less digits than its factorization.

28334359872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20068 (or 20046 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 28334359872 in words is "twenty-eight billion, three hundred thirty-four million, three hundred fifty-nine thousand, eight hundred seventy-two".