18499841922 has 16 divisors (see below), whose sum is σ = 37015735680. Its totient is φ = 6163938672.

The previous prime is 18499841911. The next prime is 18499841923. The reversal of 18499841922 is 22914899481.

It is a super-2 number, since 2×18499841922² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18499841923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653818 + ... + 681525.

It is an arithmetic number, because the mean of its divisors is an integer number (2313483480).

Almost surely, 2^18499841922 is an apocalyptic number.

18499841922 is an abundant number, since it is smaller than the sum of its proper divisors (18515893758).

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

18499841922 is a wasteful number, since it uses less digits than its factorization.

18499841922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337657.

The product of its digits is 2985984, while the sum is 57.

The spelling of 18499841922 in words is "eighteen billion, four hundred ninety-nine million, eight hundred forty-one thousand, nine hundred twenty-two".