856323317179 has 8 divisors (see below), whose sum is σ = 974787017472. Its totient is φ = 744628971240.

The previous prime is 856323317131. The next prime is 856323317191. The reversal of 856323317179 is 971713323658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 856323317179 - 2¹⁷ = 856323186107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856323315179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1692338319 + ... + 1692338824.

It is an arithmetic number, because the mean of its divisors is an integer number (121848377184).

Almost surely, 2^856323317179 is an apocalyptic number.

856323317179 is a deficient number, since it is larger than the sum of its proper divisors (118463700293).

856323317179 is a wasteful number, since it uses less digits than its factorization.

856323317179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384677177.

The product of its digits is 5715360, while the sum is 55.

The spelling of 856323317179 in words is "eight hundred fifty-six billion, three hundred twenty-three million, three hundred seventeen thousand, one hundred seventy-nine".