856811386022 has 8 divisors (see below), whose sum is σ = 1360818083736. Its totient is φ = 403205358112.

The previous prime is 856811386007. The next prime is 856811386043. The reversal of 856811386022 is 220683118658.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12600167408 + ... + 12600167475.

It is an arithmetic number, because the mean of its divisors is an integer number (170102260467).

Almost surely, 2^856811386022 is an apocalyptic number.

856811386022 is a deficient number, since it is larger than the sum of its proper divisors (504006697714).

856811386022 is a wasteful number, since it uses less digits than its factorization.

856811386022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25200334902.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 856811386022 in words is "eight hundred fifty-six billion, eight hundred eleven million, three hundred eighty-six thousand, twenty-two".