845860860864 has 224 divisors, whose sum is σ = 2658083258880. Its totient is φ = 263116339200.

The previous prime is 845860860857. The next prime is 845860860973. The reversal of 845860860864 is 468068068548.

845860860864 is a `hidden beast` number, since 8 + 458 + 60 + 8 + 60 + 8 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1369959 + ... + 1889049.

It is an arithmetic number, because the mean of its divisors is an integer number (11866443120).

Almost surely, 2^845860860864 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 845860860864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329041629440).

845860860864 is an abundant number, since it is smaller than the sum of its proper divisors (1812222398016).

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

845860860864 is a wasteful number, since it uses less digits than its factorization.

845860860864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519176 (or 519160 counting only the distinct ones).

The product of its (nonzero) digits is 70778880, while the sum is 63.

The spelling of 845860860864 in words is "eight hundred forty-five billion, eight hundred sixty million, eight hundred sixty thousand, eight hundred sixty-four".