84855849568 has 144 divisors (see below), whose sum is σ = 197094189600. Its totient is φ = 35852974080.

The previous prime is 84855849557. The next prime is 84855849607. The reversal of 84855849568 is 86594855848.

It is a junction number, because it is equal to n+sod(n) for n = 84855849497 and 84855849506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64332813 + ... + 64334131.

It is an arithmetic number, because the mean of its divisors is an integer number (1368709650).

Almost surely, 2^84855849568 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 84855849568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98547094800).

84855849568 is an abundant number, since it is smaller than the sum of its proper divisors (112238340032).

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

84855849568 is a wasteful number, since it uses less digits than its factorization.

84855849568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893 (or 1878 counting only the distinct ones).

The product of its digits is 442368000, while the sum is 70.

The spelling of 84855849568 in words is "eighty-four billion, eight hundred fifty-five million, eight hundred forty-nine thousand, five hundred sixty-eight".