855823454832 has 160 divisors (see below), whose sum is σ = 2349516407040. Its totient is φ = 267681024000.

The previous prime is 855823454803. The next prime is 855823454881. The reversal of 855823454832 is 238454328558.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 64627732 + ... + 64640972.

It is an arithmetic number, because the mean of its divisors is an integer number (14684477544).

Almost surely, 2^855823454832 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 855823454832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1174758203520).

855823454832 is an abundant number, since it is smaller than the sum of its proper divisors (1493692952208).

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

855823454832 is a wasteful number, since it uses less digits than its factorization.

855823454832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13943 (or 13937 counting only the distinct ones).

The product of its digits is 36864000, while the sum is 57.

The spelling of 855823454832 in words is "eight hundred fifty-five billion, eight hundred twenty-three million, four hundred fifty-four thousand, eight hundred thirty-two".