28587283230 has 128 divisors (see below), whose sum is σ = 75412187136. Its totient is φ = 6878131200.

The previous prime is 28587283229. The next prime is 28587283267. The reversal of 28587283230 is 3238278582.

It is a super-3 number, since 3×28587283230³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28587283230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33356962 + ... + 33357818.

It is an arithmetic number, because the mean of its divisors is an integer number (589157712).

Almost surely, 2^28587283230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28587283230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37706093568).

28587283230 is an abundant number, since it is smaller than the sum of its proper divisors (46824903906).

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

28587283230 is a wasteful number, since it uses less digits than its factorization.

28587283230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 28587283230 in words is "twenty-eight billion, five hundred eighty-seven million, two hundred eighty-three thousand, two hundred thirty".