856603502922 has 16 divisors (see below), whose sum is σ = 1768471748352. Its totient is φ = 276323710560.

The previous prime is 856603502827. The next prime is 856603502947. The reversal of 856603502922 is 229205306658.

It is a super-2 number, since 2×856603502922² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2302697403 + ... + 2302697774.

It is an arithmetic number, because the mean of its divisors is an integer number (110529484272).

Almost surely, 2^856603502922 is an apocalyptic number.

856603502922 is an abundant number, since it is smaller than the sum of its proper divisors (911868245430).

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

856603502922 is a wasteful number, since it uses less digits than its factorization.

856603502922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4605395213.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 856603502922 in words is "eight hundred fifty-six billion, six hundred three million, five hundred two thousand, nine hundred twenty-two".