18137967797185 has 8 divisors (see below), whose sum is σ = 21765592644480. Its totient is φ = 14510353379184.

The previous prime is 18137967797161. The next prime is 18137967797233. The reversal of 18137967797185 is 58179776973181.

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

It is a cyclic number.

It is not a de Polignac number, because 18137967797185 - 2¹⁹ = 18137967272897 is a prime.

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, 1939656 + ... + 6327574.

It is an arithmetic number, because the mean of its divisors is an integer number (2720699080560).

Almost surely, 2^{18137967797185} is an apocalyptic number.

It is an amenable number.

18137967797185 is a deficient number, since it is larger than the sum of its proper divisors (3627624847295).

18137967797185 is an equidigital number, since it uses as much as digits as its factorization.

18137967797185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5214647.

The product of its digits is 1120210560, while the sum is 79.

The spelling of 18137967797185 in words is "eighteen trillion, one hundred thirty-seven billion, nine hundred sixty-seven million, seven hundred ninety-seven thousand, one hundred eighty-five".