11817142988374 has 8 divisors (see below), whose sum is σ = 17725812738120. Its totient is φ = 5908538742336.

The previous prime is 11817142988333. The next prime is 11817142988377. The reversal of 11817142988374 is 47388924171811.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11817142988377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15922404 + ... + 16648039.

It is an arithmetic number, because the mean of its divisors is an integer number (2215726592265).

Almost surely, 2^{11817142988374} is an apocalyptic number.

11817142988374 is a deficient number, since it is larger than the sum of its proper divisors (5908669749746).

11817142988374 is a wasteful number, since it uses less digits than its factorization.

11817142988374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32751854.

The product of its digits is 21676032, while the sum is 64.

The spelling of 11817142988374 in words is "eleven trillion, eight hundred seventeen billion, one hundred forty-two million, nine hundred eighty-eight thousand, three hundred seventy-four".