28830218536 has 128 divisors (see below), whose sum is σ = 66662092800. Its totient is φ = 11408624640.

The previous prime is 28830218533. The next prime is 28830218551. The reversal of 28830218536 is 63581203882.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28830218533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15342445 + ... + 15344323.

It is an arithmetic number, because the mean of its divisors is an integer number (520797600).

Almost surely, 2^28830218536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28830218536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33331046400).

28830218536 is an abundant number, since it is smaller than the sum of its proper divisors (37831874264).

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

28830218536 is a wasteful number, since it uses less digits than its factorization.

28830218536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207 (or 2203 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 28830218536 in words is "twenty-eight billion, eight hundred thirty million, two hundred eighteen thousand, five hundred thirty-six".