12441718918 has 4 divisors (see below), whose sum is σ = 18662578380. Its totient is φ = 6220859458.

The previous prime is 12441718903. The next prime is 12441718931. The reversal of 12441718918 is 81981714421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81981714421 = 347 ⋅236258543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110429728 + ... + 3110429731.

It is an arithmetic number, because the mean of its divisors is an integer number (4665644595).

Almost surely, 2^12441718918 is an apocalyptic number.

12441718918 is a deficient number, since it is larger than the sum of its proper divisors (6220859462).

12441718918 is an equidigital number, since it uses as much as digits as its factorization.

12441718918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220859461.

The product of its digits is 129024, while the sum is 46.

The spelling of 12441718918 in words is "twelve billion, four hundred forty-one million, seven hundred eighteen thousand, nine hundred eighteen".