28550074266 has 64 divisors (see below), whose sum is σ = 72595353600. Its totient is φ = 8147351088.

The previous prime is 28550074243. The next prime is 28550074279. The reversal of 28550074266 is 66247005582.

28550074266 is a `hidden beast` number, since 2 + 8 + 550 + 0 + 74 + 26 + 6 = 666.

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, 272131 + ... + 362153.

It is an arithmetic number, because the mean of its divisors is an integer number (1134302400).

Almost surely, 2^28550074266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28550074266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36297676800).

28550074266 is an abundant number, since it is smaller than the sum of its proper divisors (44045279334).

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

28550074266 is a wasteful number, since it uses less digits than its factorization.

28550074266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90880 (or 90874 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 28550074266 in words is "twenty-eight billion, five hundred fifty million, seventy-four thousand, two hundred sixty-six".