18585939125 has 16 divisors (see below), whose sum is σ = 24979504368. Its totient is φ = 13725000000.

The previous prime is 18585939109. The next prime is 18585939143. The reversal of 18585939125 is 52193958581.

It can be written as a sum of positive squares in 8 ways, for example, as 4822191364 + 13763747761 = 69442^2 + 117319^2 .

It is not a de Polignac number, because 18585939125 - 2⁴ = 18585939109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5717126 + ... + 5720375.

It is an arithmetic number, because the mean of its divisors is an integer number (1561219023).

Almost surely, 2^18585939125 is an apocalyptic number.

It is an amenable number.

18585939125 is a deficient number, since it is larger than the sum of its proper divisors (6393565243).

18585939125 is a wasteful number, since it uses less digits than its factorization.

18585939125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11437529 (or 11437519 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 56.

The spelling of 18585939125 in words is "eighteen billion, five hundred eighty-five million, nine hundred thirty-nine thousand, one hundred twenty-five".