846357844883220 has 144 divisors (see below), whose sum is σ = 2579335253743248. Its totient is φ = 224638569492480.

The previous prime is 846357844883179. The next prime is 846357844883227. The reversal of 846357844883220 is 22388448753648.

It is a happy number.

846357844883220 is a `hidden beast` number, since 8 + 4 + 6 + 3 + 578 + 4 + 48 + 8 + 3 + 2 + 2 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 16831097015184 + 829526747868036 = 4102572^2 + 28801506^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846357844883227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20097292 + ... + 45788828.

It is an arithmetic number, because the mean of its divisors is an integer number (17912050373217).

Almost surely, 2^{846357844883220} 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 846357844883220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289667626871624).

846357844883220 is an abundant number, since it is smaller than the sum of its proper divisors (1732977408860028).

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

846357844883220 is a wasteful number, since it uses less digits than its factorization.

846357844883220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25692410 (or 25692405 counting only the distinct ones).

The product of its (nonzero) digits is 1981808640, while the sum is 72.

The spelling of 846357844883220 in words is "eight hundred forty-six trillion, three hundred fifty-seven billion, eight hundred forty-four million, eight hundred eighty-three thousand, two hundred twenty".