28928818530 has 96 divisors (see below), whose sum is σ = 76065283008. Its totient is φ = 7627420800.

The previous prime is 28928818511. The next prime is 28928818549. The reversal of 28928818530 is 3581882982.

28928818530 is a `hidden beast` number, since 2 + 8 + 9 + 28 + 81 + 8 + 530 = 666.

It is an interprime number because it is at equal distance from previous prime (28928818511) and next prime (28928818549).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5496100 + ... + 5501360.

It is an arithmetic number, because the mean of its divisors is an integer number (792346698).

Almost surely, 2^28928818530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28928818530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38032641504).

28928818530 is an abundant number, since it is smaller than the sum of its proper divisors (47136464478).

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

28928818530 is a wasteful number, since it uses less digits than its factorization.

28928818530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952 (or 5949 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 28928818530 in words is "twenty-eight billion, nine hundred twenty-eight million, eight hundred eighteen thousand, five hundred thirty".