28264551822 has 96 divisors (see below), whose sum is σ = 70069315680. Its totient is φ = 8169880320.

The previous prime is 28264551779. The next prime is 28264551841. The reversal of 28264551822 is 22815546282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194797 + ... + 307367.

It is an arithmetic number, because the mean of its divisors is an integer number (729888705).

Almost surely, 2^28264551822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28264551822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35034657840).

28264551822 is an abundant number, since it is smaller than the sum of its proper divisors (41804763858).

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

28264551822 is a wasteful number, since it uses less digits than its factorization.

28264551822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112658 (or 112655 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The spelling of 28264551822 in words is "twenty-eight billion, two hundred sixty-four million, five hundred fifty-one thousand, eight hundred twenty-two".