18086560238 has 8 divisors (see below), whose sum is σ = 27130668888. Its totient is φ = 9043003944.

The previous prime is 18086560229. The next prime is 18086560241. The reversal of 18086560238 is 83206568081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18086560238² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18086560192 and 18086560201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43181 + ... + 195032.

It is an arithmetic number, because the mean of its divisors is an integer number (3391333611).

Almost surely, 2^18086560238 is an apocalyptic number.

18086560238 is a deficient number, since it is larger than the sum of its proper divisors (9044108650).

18086560238 is a wasteful number, since it uses less digits than its factorization.

18086560238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276178.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 18086560238 in words is "eighteen billion, eighty-six million, five hundred sixty thousand, two hundred thirty-eight".