28730000530 has 32 divisors (see below), whose sum is σ = 64474600320. Its totient is φ = 8954805120.

The previous prime is 28730000503. The next prime is 28730000539. The reversal of 28730000530 is 3500003782.

It is not an unprimeable number, because it can be changed into a prime (28730000539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18655075 + ... + 18656614.

It is an arithmetic number, because the mean of its divisors is an integer number (2014831260).

Almost surely, 2^28730000530 is an apocalyptic number.

28730000530 is an abundant number, since it is smaller than the sum of its proper divisors (35744599790).

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

28730000530 is a wasteful number, since it uses less digits than its factorization.

28730000530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37311714.

The product of its (nonzero) digits is 5040, while the sum is 28.

The spelling of 28730000530 in words is "twenty-eight billion, seven hundred thirty million, five hundred thirty", and thus it is an aban number.