18083132538 has 16 divisors (see below), whose sum is σ = 37007341536. Its totient is φ = 5887531440.

The previous prime is 18083132477. The next prime is 18083132549. The reversal of 18083132538 is 83523138081.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18083132538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35044573 + ... + 35045088.

It is an arithmetic number, because the mean of its divisors is an integer number (2312958846).

Almost surely, 2^18083132538 is an apocalyptic number.

18083132538 is an abundant number, since it is smaller than the sum of its proper divisors (18924208998).

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

18083132538 is a wasteful number, since it uses less digits than its factorization.

18083132538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70089709.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 18083132538 in words is "eighteen billion, eighty-three million, one hundred thirty-two thousand, five hundred thirty-eight".