14691918331818 has 48 divisors (see below), whose sum is σ = 39178448889216. Its totient is φ = 3874791647520.

The previous prime is 14691918331817. The next prime is 14691918331823. The reversal of 14691918331818 is 81813381919641.

14691918331818 is a `hidden beast` number, since 1 + 46 + 9 + 191 + 83 + 318 + 18 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (14691918331817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4484710918 + ... + 4484714193.

It is an arithmetic number, because the mean of its divisors is an integer number (816217685192).

Almost surely, 2^{14691918331818} is an apocalyptic number.

14691918331818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

14691918331818 is an abundant number, since it is smaller than the sum of its proper divisors (24486530557398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14691918331818 is a wasteful number, since it uses less digits than its factorization.

14691918331818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969425139 (or 8969425136 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 63.

The spelling of 14691918331818 in words is "fourteen trillion, six hundred ninety-one billion, nine hundred eighteen million, three hundred thirty-one thousand, eight hundred eighteen".