18916751334117 has 64 divisors (see below), whose sum is σ = 31516586522624. Its totient is φ = 9825900099840.

The previous prime is 18916751334097. The next prime is 18916751334161. The reversal of 18916751334117 is 71143315761981.

It is not a de Polignac number, because 18916751334117 - 2²⁰ = 18916750285541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18916751334167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55819818 + ... + 56157684.

It is an arithmetic number, because the mean of its divisors is an integer number (492446664416).

Almost surely, 2^{18916751334117} is an apocalyptic number.

It is an amenable number.

18916751334117 is a deficient number, since it is larger than the sum of its proper divisors (12599835188507).

18916751334117 is a wasteful number, since it uses less digits than its factorization.

18916751334117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341018.

The product of its digits is 3810240, while the sum is 57.

The spelling of 18916751334117 in words is "eighteen trillion, nine hundred sixteen billion, seven hundred fifty-one million, three hundred thirty-four thousand, one hundred seventeen".