18119129904 has 60 divisors (see below), whose sum is σ = 53377269400. Its totient is φ = 5721829632.

The previous prime is 18119129893. The next prime is 18119129909. The reversal of 18119129904 is 40992191181.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18119129904.

It is not an unprimeable number, because it can be changed into a prime (18119129909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3308509 + ... + 3313980.

Almost surely, 2^18119129904 is an apocalyptic number.

It is an amenable number.

18119129904 is an abundant number, since it is smaller than the sum of its proper divisors (35258139496).

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

18119129904 is a wasteful number, since it uses less digits than its factorization.

18119129904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622522 (or 6622513 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 45.

The spelling of 18119129904 in words is "eighteen billion, one hundred nineteen million, one hundred twenty-nine thousand, nine hundred four".