285044213088 has 144 divisors (see below), whose sum is σ = 851925634560. Its totient is φ = 90229531392.

The previous prime is 285044213081. The next prime is 285044213119. The reversal of 285044213088 is 880312440582.

285044213088 is a `hidden beast` number, since 2 + 8 + 504 + 4 + 2 + 130 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285044213081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 765945 + ... + 1075527.

It is an arithmetic number, because the mean of its divisors is an integer number (5916150240).

Almost surely, 2^285044213088 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 285044213088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425962817280).

285044213088 is an abundant number, since it is smaller than the sum of its proper divisors (566881421472).

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

285044213088 is a wasteful number, since it uses less digits than its factorization.

285044213088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309761 (or 309750 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 285044213088 in words is "two hundred eighty-five billion, forty-four million, two hundred thirteen thousand, eighty-eight".