285421552384 has 72 divisors (see below), whose sum is σ = 590581872720. Its totient is φ = 137507328000.

The previous prime is 285421552331. The next prime is 285421552387. The reversal of 285421552384 is 483255124582.

It is not an unprimeable number, because it can be changed into a prime (285421552387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3606034 + ... + 3684334.

It is an arithmetic number, because the mean of its divisors is an integer number (8202526010).

Almost surely, 2^285421552384 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 285421552384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295290936360).

285421552384 is an abundant number, since it is smaller than the sum of its proper divisors (305160320336).

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

285421552384 is an equidigital number, since it uses as much as digits as its factorization.

285421552384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78837 (or 78823 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 49.

The spelling of 285421552384 in words is "two hundred eighty-five billion, four hundred twenty-one million, five hundred fifty-two thousand, three hundred eighty-four".