28301030056 has 64 divisors (see below), whose sum is σ = 57770858880. Its totient is φ = 12919653120.

The previous prime is 28301029997. The next prime is 28301030071. The reversal of 28301030056 is 65003010382.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8867421 + ... + 8870611.

It is an arithmetic number, because the mean of its divisors is an integer number (902669670).

Almost surely, 2^28301030056 is an apocalyptic number.

28301030056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28301030056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28885429440).

28301030056 is an abundant number, since it is smaller than the sum of its proper divisors (29469828824).

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

28301030056 is a wasteful number, since it uses less digits than its factorization.

28301030056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4114 (or 4110 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 28301030056 in words is "twenty-eight billion, three hundred one million, thirty thousand, fifty-six".