18585939124 has 12 divisors (see below), whose sum is σ = 32528304900. Its totient is φ = 9292137728.

The previous prime is 18585939109. The next prime is 18585939143. The reversal of 18585939124 is 42193958581.

It can be written as a sum of positive squares in 2 ways, for example, as 7782415524 + 10803523600 = 88218^2 + 103940^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 156259 + ... + 248170.

It is an arithmetic number, because the mean of its divisors is an integer number (2710692075).

Almost surely, 2^18585939124 is an apocalyptic number.

It is an amenable number.

18585939124 is a deficient number, since it is larger than the sum of its proper divisors (13942365776).

18585939124 is a wasteful number, since it uses less digits than its factorization.

18585939124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415922 (or 415920 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 55.

The spelling of 18585939124 in words is "eighteen billion, five hundred eighty-five million, nine hundred thirty-nine thousand, one hundred twenty-four".