846645827868 has 60 divisors (see below), whose sum is σ = 2213470724080. Its totient is φ = 282193435008.

The previous prime is 846645827843. The next prime is 846645827897. The reversal of 846645827868 is 868728546648.

846645827868 is a `hidden beast` number, since 8 + 46 + 6 + 458 + 2 + 78 + 68 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 846645827796 and 846645827805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4400673 + ... + 4589031.

Almost surely, 2^846645827868 is an apocalyptic number.

It is an amenable number.

846645827868 is an abundant number, since it is smaller than the sum of its proper divisors (1366824896212).

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

846645827868 is a wasteful number, since it uses less digits than its factorization.

846645827868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202248 (or 202237 counting only the distinct ones).

The product of its digits is 990904320, while the sum is 72.

The spelling of 846645827868 in words is "eight hundred forty-six billion, six hundred forty-five million, eight hundred twenty-seven thousand, eight hundred sixty-eight".