11822856836 has 48 divisors (see below), whose sum is σ = 24219955200. Its totient is φ = 4945127328.

The previous prime is 11822856833. The next prime is 11822856841. The reversal of 11822856836 is 63865822811.

It is not an unprimeable number, because it can be changed into a prime (11822856833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203885 + ... + 255371.

It is an arithmetic number, because the mean of its divisors is an integer number (504582400).

Almost surely, 2^11822856836 is an apocalyptic number.

It is an amenable number.

11822856836 is an abundant number, since it is smaller than the sum of its proper divisors (12397098364).

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

11822856836 is a wasteful number, since it uses less digits than its factorization.

11822856836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51696 (or 51694 counting only the distinct ones).

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

The spelling of 11822856836 in words is "eleven billion, eight hundred twenty-two million, eight hundred fifty-six thousand, eight hundred thirty-six".