18038975112 has 48 divisors (see below), whose sum is σ = 49543678080. Its totient is φ = 5928300000.

The previous prime is 18038975039. The next prime is 18038975137. The reversal of 18038975112 is 21157983081.

18038975112 is a `hidden beast` number, since 18 + 0 + 38 + 97 + 511 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1759264 + ... + 1769487.

It is an arithmetic number, because the mean of its divisors is an integer number (1032159960).

Almost surely, 2^18038975112 is an apocalyptic number.

18038975112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18038975112 is an abundant number, since it is smaller than the sum of its proper divisors (31504702968).

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

18038975112 is a wasteful number, since it uses less digits than its factorization.

18038975112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528834 (or 3528827 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The spelling of 18038975112 in words is "eighteen billion, thirty-eight million, nine hundred seventy-five thousand, one hundred twelve".