18137109634558 has 8 divisors (see below), whose sum is σ = 27611719145352. Its totient is φ = 8933203252776.

The previous prime is 18137109634529. The next prime is 18137109634559. The reversal of 18137109634558 is 85543690173181.

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

It is a junction number, because it is equal to n+sod(n) for n = 18137109634496 and 18137109634505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18137109634559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67675782085 + ... + 67675782352.

It is an arithmetic number, because the mean of its divisors is an integer number (3451464893169).

Almost surely, 2^{18137109634558} is an apocalyptic number.

18137109634558 is a deficient number, since it is larger than the sum of its proper divisors (9474609510794).

18137109634558 is a wasteful number, since it uses less digits than its factorization.

18137109634558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135351564506.

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 18137109634558 in words is "eighteen trillion, one hundred thirty-seven billion, one hundred nine million, six hundred thirty-four thousand, five hundred fifty-eight".