852687109056 has 112 divisors (see below), whose sum is σ = 2330992836608. Its totient is φ = 274806604800.

The previous prime is 852687109051. The next prime is 852687109093. The reversal of 852687109056 is 650901786258.

It is a super-2 number, since 2×852687109056² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 852687108987 and 852687109005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852687109051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6440001 + ... + 6571071.

Almost surely, 2^852687109056 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 852687109056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1165496418304).

852687109056 is an abundant number, since it is smaller than the sum of its proper divisors (1478305727552).

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

852687109056 is a wasteful number, since it uses less digits than its factorization.

852687109056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132210 (or 132200 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 852687109056 in words is "eight hundred fifty-two billion, six hundred eighty-seven million, one hundred nine thousand, fifty-six".