28466951856 has 160 divisors (see below), whose sum is σ = 89146675200. Its totient is φ = 7646296320.

The previous prime is 28466951827. The next prime is 28466951861. The reversal of 28466951856 is 65815966482.

It is a self number, because there is not a number n which added to its sum of digits gives 28466951856.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819285 + ... + 853323.

It is an arithmetic number, because the mean of its divisors is an integer number (557166720).

Almost surely, 2^28466951856 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 28466951856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44573337600).

28466951856 is an abundant number, since it is smaller than the sum of its proper divisors (60679723344).

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

28466951856 is a wasteful number, since it uses less digits than its factorization.

28466951856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34207 (or 34201 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 60.

The spelling of 28466951856 in words is "twenty-eight billion, four hundred sixty-six million, nine hundred fifty-one thousand, eight hundred fifty-six".