18137109634557 has 8 divisors (see below), whose sum is σ = 24185803210176. Its totient is φ = 12089911240992.

The previous prime is 18137109634529. The next prime is 18137109634559. The reversal of 18137109634557 is 75543690173181.

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

It is not a de Polignac number, because 18137109634557 - 2¹⁵ = 18137109601789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18137109634557.

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 7 ways as a sum of consecutive naturals, for example, 373767208 + ... + 373815729.

It is an arithmetic number, because the mean of its divisors is an integer number (3023225401272).

Almost surely, 2^{18137109634557} is an apocalyptic number.

It is an amenable number.

18137109634557 is a deficient number, since it is larger than the sum of its proper divisors (6048693575619).

18137109634557 is an equidigital number, since it uses as much as digits as its factorization.

18137109634557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747591027.

The product of its (nonzero) digits is 19051200, while the sum is 60.

The spelling of 18137109634557 in words is "eighteen trillion, one hundred thirty-seven billion, one hundred nine million, six hundred thirty-four thousand, five hundred fifty-seven".