12684390118 has 8 divisors (see below), whose sum is σ = 19106195040. Its totient is φ = 6315658440.

The previous prime is 12684390113. The next prime is 12684390119. The reversal of 12684390118 is 81109348621.

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 (12684390113) 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, 13267713 + ... + 13268668.

It is an arithmetic number, because the mean of its divisors is an integer number (2388274380).

Almost surely, 2^12684390118 is an apocalyptic number.

12684390118 is a deficient number, since it is larger than the sum of its proper divisors (6421804922).

12684390118 is a wasteful number, since it uses less digits than its factorization.

12684390118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26536622.

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 12684390118 in words is "twelve billion, six hundred eighty-four million, three hundred ninety thousand, one hundred eighteen".