846921956472 has 192 divisors, whose sum is σ = 2544443366400. Its totient is φ = 253291484160.

The previous prime is 846921956449. The next prime is 846921956497. The reversal of 846921956472 is 274659129648.

846921956472 is a `hidden beast` number, since 8 + 4 + 69 + 2 + 1 + 9 + 564 + 7 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2375679 + ... + 2708817.

It is an arithmetic number, because the mean of its divisors is an integer number (13252309200).

Almost surely, 2^846921956472 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 846921956472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1272221683200).

846921956472 is an abundant number, since it is smaller than the sum of its proper divisors (1697521409928).

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

846921956472 is a wasteful number, since it uses less digits than its factorization.

846921956472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333266 (or 333259 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 846921956472 in words is "eight hundred forty-six billion, nine hundred twenty-one million, nine hundred fifty-six thousand, four hundred seventy-two".