28806566976 has 672 divisors, whose sum is σ = 101695910400. Its totient is φ = 7906636800.

The previous prime is 28806566953. The next prime is 28806566993. The reversal of 28806566976 is 67966560882.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 347067031 + ... + 347067113.

It is an arithmetic number, because the mean of its divisors is an integer number (151333200).

Almost surely, 2^28806566976 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 28806566976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50847955200).

28806566976 is an abundant number, since it is smaller than the sum of its proper divisors (72889343424).

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

28806566976 is a wasteful number, since it uses less digits than its factorization.

28806566976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 28806566976 in words is "twenty-eight billion, eight hundred six million, five hundred sixty-six thousand, nine hundred seventy-six".