18495482238 has 48 divisors (see below), whose sum is σ = 40273346256. Its totient is φ = 6134486400.

The previous prime is 18495482237. The next prime is 18495482273. The reversal of 18495482238 is 83228459481.

18495482238 is a `hidden beast` number, since 1 + 8 + 49 + 548 + 22 + 38 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18495482233) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4400538 + ... + 4404738.

It is an arithmetic number, because the mean of its divisors is an integer number (839028047).

Almost surely, 2^18495482238 is an apocalyptic number.

18495482238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18495482238 is an abundant number, since it is smaller than the sum of its proper divisors (21777864018).

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

18495482238 is a wasteful number, since it uses less digits than its factorization.

18495482238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369 (or 5366 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The spelling of 18495482238 in words is "eighteen billion, four hundred ninety-five million, four hundred eighty-two thousand, two hundred thirty-eight".