856895345322 has 32 divisors (see below), whose sum is σ = 1739892068352. Its totient is φ = 281284113264.

The previous prime is 856895345263. The next prime is 856895345351. The reversal of 856895345322 is 223543598658.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 1027063 + ... + 1663925.

It is an arithmetic number, because the mean of its divisors is an integer number (54371627136).

Almost surely, 2^856895345322 is an apocalyptic number.

856895345322 is an abundant number, since it is smaller than the sum of its proper divisors (882996723030).

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

856895345322 is a wasteful number, since it uses less digits than its factorization.

856895345322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640282.

The product of its digits is 62208000, while the sum is 60.

The spelling of 856895345322 in words is "eight hundred fifty-six billion, eight hundred ninety-five million, three hundred forty-five thousand, three hundred twenty-two".