856952955328 has 56 divisors (see below), whose sum is σ = 1746680588928. Its totient is φ = 416920256256.

The previous prime is 856952955311. The next prime is 856952955367. The reversal of 856952955328 is 823559259658.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131775 + ... + 1315777.

Almost surely, 2^856952955328 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 856952955328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873340294464).

856952955328 is an abundant number, since it is smaller than the sum of its proper divisors (889727633600).

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

856952955328 is a wasteful number, since it uses less digits than its factorization.

856952955328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184321 (or 1184311 counting only the distinct ones).

The product of its digits is 233280000, while the sum is 67.

The spelling of 856952955328 in words is "eight hundred fifty-six billion, nine hundred fifty-two million, nine hundred fifty-five thousand, three hundred twenty-eight".