856382417806 has 16 divisors (see below), whose sum is σ = 1310962176000. Its totient is φ = 419446316088.

The previous prime is 856382417801. The next prime is 856382417809. The reversal of 856382417806 is 608714283658.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856382417801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12789006 + ... + 12855793.

It is an arithmetic number, because the mean of its divisors is an integer number (81935136000).

Almost surely, 2^856382417806 is an apocalyptic number.

856382417806 is a deficient number, since it is larger than the sum of its proper divisors (454579758194).

856382417806 is a wasteful number, since it uses less digits than its factorization.

856382417806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25645143.

The product of its (nonzero) digits is 15482880, while the sum is 58.

The spelling of 856382417806 in words is "eight hundred fifty-six billion, three hundred eighty-two million, four hundred seventeen thousand, eight hundred six".