28300263852 has 144 divisors (see below), whose sum is σ = 78554353920. Its totient is φ = 7762345344.

The previous prime is 28300263793. The next prime is 28300263949. The reversal of 28300263852 is 25836200382.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28300263852.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19396299 + ... + 19397757.

Almost surely, 2^28300263852 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 28300263852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39277176960).

28300263852 is an abundant number, since it is smaller than the sum of its proper divisors (50254090068).

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

28300263852 is a wasteful number, since it uses less digits than its factorization.

28300263852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668 (or 1587 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 28300263852 in words is "twenty-eight billion, three hundred million, two hundred sixty-three thousand, eight hundred fifty-two".