285019284828 has 96 divisors (see below), whose sum is σ = 715515655680. Its totient is φ = 87987916800.

The previous prime is 285019284827. The next prime is 285019284833. The reversal of 285019284828 is 828482910582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285019284827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3159753 + ... + 3248703.

It is an arithmetic number, because the mean of its divisors is an integer number (7453288080).

Almost surely, 2^285019284828 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 285019284828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357757827840).

285019284828 is an abundant number, since it is smaller than the sum of its proper divisors (430496370852).

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

285019284828 is a wasteful number, since it uses less digits than its factorization.

285019284828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89227 (or 89225 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 57.

The spelling of 285019284828 in words is "two hundred eighty-five billion, nineteen million, two hundred eighty-four thousand, eight hundred twenty-eight".