28112645850 has 192 divisors, whose sum is σ = 77639316480. Its totient is φ = 6695603200.

The previous prime is 28112645837. The next prime is 28112645851. The reversal of 28112645850 is 5854621182.

It is not an unprimeable number, because it can be changed into a prime (28112645851) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7681321 + ... + 7684979.

It is an arithmetic number, because the mean of its divisors is an integer number (404371440).

Almost surely, 2^28112645850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28112645850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38819658240).

28112645850 is an abundant number, since it is smaller than the sum of its proper divisors (49526670630).

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

28112645850 is a wasteful number, since it uses less digits than its factorization.

28112645850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3845 (or 3840 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 28112645850 in words is "twenty-eight billion, one hundred twelve million, six hundred forty-five thousand, eight hundred fifty".