28538022528 has 96 divisors (see below), whose sum is σ = 82465531200. Its totient is φ = 9472780800.

The previous prime is 28538022521. The next prime is 28538022529. The reversal of 28538022528 is 82522083582.

28538022528 is a `hidden beast` number, since 28 + 5 + 3 + 80 + 22 + 528 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (28538022521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223503 + ... + 327153.

It is an arithmetic number, because the mean of its divisors is an integer number (859015950).

Almost surely, 2^28538022528 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 28538022528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41232765600).

28538022528 is an abundant number, since it is smaller than the sum of its proper divisors (53927508672).

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

28538022528 is a wasteful number, since it uses less digits than its factorization.

28538022528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103910 (or 103895 counting only the distinct ones).

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

The spelling of 28538022528 in words is "twenty-eight billion, five hundred thirty-eight million, twenty-two thousand, five hundred twenty-eight".