28573564608 has 168 divisors, whose sum is σ = 85639826688. Its totient is φ = 9091450368.

The previous prime is 28573564577. The next prime is 28573564619. The reversal of 28573564608 is 80646537582.

28573564608 is a `hidden beast` number, since 2 + 8 + 5 + 73 + 564 + 6 + 0 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7244685 + ... + 7248627.

Almost surely, 2^28573564608 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 28573564608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42819913344).

28573564608 is an abundant number, since it is smaller than the sum of its proper divisors (57066262080).

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

28573564608 is a wasteful number, since it uses less digits than its factorization.

28573564608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531 (or 4518 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 28573564608 in words is "twenty-eight billion, five hundred seventy-three million, five hundred sixty-four thousand, six hundred eight".