846389944980 has 60 divisors (see below), whose sum is σ = 2655156610260. Its totient is φ = 225703984896.

The previous prime is 846389944979. The next prime is 846389945147. The reversal of 846389944980 is 89449983648.

846389944980 is a `hidden beast` number, since 8 + 46 + 3 + 8 + 9 + 94 + 498 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 275914876176 + 570475068804 = 525276^2 + 755298^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a junction number, because it is equal to n+sod(n) for n = 846389944899 and 846389944908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 261229845 + ... + 261233084.

It is an arithmetic number, because the mean of its divisors is an integer number (44252610171).

Almost surely, 2^846389944980 is an apocalyptic number.

It is an amenable number.

846389944980 is an abundant number, since it is smaller than the sum of its proper divisors (1808766665280).

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

846389944980 is a wasteful number, since it uses less digits than its factorization.

846389944980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522462950 (or 522462939 counting only the distinct ones).

The product of its (nonzero) digits is 429981696, while the sum is 72.

The spelling of 846389944980 in words is "eight hundred forty-six billion, three hundred eighty-nine million, nine hundred forty-four thousand, nine hundred eighty".