856880186145 has 8 divisors (see below), whose sum is σ = 1371008297856. Its totient is φ = 457002765936.

The previous prime is 856880186111. The next prime is 856880186159. The reversal of 856880186145 is 541681088658.

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

It is not a de Polignac number, because 856880186145 - 2⁶ = 856880186081 is a prime.

It is a super-2 number, since 2×856880186145² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28562672857 + ... + 28562672886.

It is an arithmetic number, because the mean of its divisors is an integer number (171376037232).

Almost surely, 2^856880186145 is an apocalyptic number.

It is an amenable number.

856880186145 is a deficient number, since it is larger than the sum of its proper divisors (514128111711).

856880186145 is a wasteful number, since it uses less digits than its factorization.

856880186145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57125345751.

The product of its (nonzero) digits is 14745600, while the sum is 60.

The spelling of 856880186145 in words is "eight hundred fifty-six billion, eight hundred eighty million, one hundred eighty-six thousand, one hundred forty-five".