285018838272 has 432 divisors, whose sum is σ = 1046779493760. Its totient is φ = 72608514048.

The previous prime is 285018838213. The next prime is 285018838301. The reversal of 285018838272 is 272838810582.

285018838272 is a `hidden beast` number, since 2 + 8 + 501 + 88 + 38 + 27 + 2 = 666.

It is a congruent number.

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, 5181988 + ... + 5236700.

It is an arithmetic number, because the mean of its divisors is an integer number (2423100680).

Almost surely, 2^285018838272 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 285018838272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523389746880).

285018838272 is an abundant number, since it is smaller than the sum of its proper divisors (761760655488).

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

285018838272 is a wasteful number, since it uses less digits than its factorization.

285018838272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54778 (or 54761 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 285018838272 in words is "two hundred eighty-five billion, eighteen million, eight hundred thirty-eight thousand, two hundred seventy-two".