28559509230 has 32 divisors (see below), whose sum is σ = 78334654464. Its totient is φ = 6527887776.

The previous prime is 28559509229. The next prime is 28559509241. The reversal of 28559509230 is 3290595582.

It is a self number, because there is not a number n which added to its sum of digits gives 28559509230.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 67998622 + ... + 67999041.

It is an arithmetic number, because the mean of its divisors is an integer number (2447957952).

Almost surely, 2^28559509230 is an apocalyptic number.

28559509230 is an abundant number, since it is smaller than the sum of its proper divisors (49775145234).

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

28559509230 is a wasteful number, since it uses less digits than its factorization.

28559509230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135997680.

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 28559509230 in words is "twenty-eight billion, five hundred fifty-nine million, five hundred nine thousand, two hundred thirty".