18411811948 has 12 divisors (see below), whose sum is σ = 32222102080. Its totient is φ = 9205497072.

The previous prime is 18411811907. The next prime is 18411812021. The reversal of 18411811948 is 84911811481.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18411811898 and 18411811907.

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, 13690 + ... + 192382.

Almost surely, 2^18411811948 is an apocalyptic number.

It is an amenable number.

18411811948 is a deficient number, since it is larger than the sum of its proper divisors (13810290132).

18411811948 is a wasteful number, since it uses less digits than its factorization.

18411811948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204456 (or 204454 counting only the distinct ones).

The product of its digits is 73728, while the sum is 46.

The spelling of 18411811948 in words is "eighteen billion, four hundred eleven million, eight hundred eleven thousand, nine hundred forty-eight".