22018125844 has 96 divisors (see below), whose sum is σ = 46867645440. Its totient is φ = 8913715200.

The previous prime is 22018125827. The next prime is 22018125919. The reversal of 22018125844 is 44852181022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6612372 + ... + 6615700.

It is an arithmetic number, because the mean of its divisors is an integer number (488204640).

Almost surely, 2^22018125844 is an apocalyptic number.

It is an amenable number.

22018125844 is an abundant number, since it is smaller than the sum of its proper divisors (24849519596).

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

22018125844 is a wasteful number, since it uses less digits than its factorization.

22018125844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761 (or 3759 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 37.

The spelling of 22018125844 in words is "twenty-two billion, eighteen million, one hundred twenty-five thousand, eight hundred forty-four".