28074065328 has 120 divisors (see below), whose sum is σ = 82711036512. Its totient is φ = 8871819264.

The previous prime is 28074065311. The next prime is 28074065359. The reversal of 28074065328 is 82356047082.

28074065328 is a `hidden beast` number, since 280 + 7 + 40 + 6 + 5 + 328 = 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, 336750 + ... + 411762.

Almost surely, 2^28074065328 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 28074065328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41355518256).

28074065328 is an abundant number, since it is smaller than the sum of its proper divisors (54636971184).

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

28074065328 is a wasteful number, since it uses less digits than its factorization.

28074065328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75163 (or 75154 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 28074065328 in words is "twenty-eight billion, seventy-four million, sixty-five thousand, three hundred twenty-eight".