284618325874220 has 96 divisors (see below), whose sum is σ = 645333001387200. Its totient is φ = 104819239526400.

The previous prime is 284618325874189. The next prime is 284618325874229. The reversal of 284618325874220 is 22478523816482.

It is not an unprimeable number, because it can be changed into a prime (284618325874229) 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, 1360384139 + ... + 1360593341.

It is an arithmetic number, because the mean of its divisors is an integer number (6722218764450).

Almost surely, 2^{284618325874220} is an apocalyptic number.

284618325874220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 284618325874220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322666500693600).

284618325874220 is an abundant number, since it is smaller than the sum of its proper divisors (360714675512980).

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

284618325874220 is a wasteful number, since it uses less digits than its factorization.

284618325874220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222675 (or 222673 counting only the distinct ones).

The product of its (nonzero) digits is 82575360, while the sum is 62.

The spelling of 284618325874220 in words is "two hundred eighty-four trillion, six hundred eighteen billion, three hundred twenty-five million, eight hundred seventy-four thousand, two hundred twenty".