18600009904 has 40 divisors (see below), whose sum is σ = 41208259328. Its totient is φ = 7967073600.

The previous prime is 18600009887. The next prime is 18600009943. The reversal of 18600009904 is 40990000681.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164629 + ... + 253579.

Almost surely, 2^18600009904 is an apocalyptic number.

18600009904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18600009904 is an abundant number, since it is smaller than the sum of its proper divisors (22608249424).

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

18600009904 is a wasteful number, since it uses less digits than its factorization.

18600009904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90833 (or 90827 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 18600009904 in words is "eighteen billion, six hundred million, nine thousand, nine hundred four".