18143414812 has 12 divisors (see below), whose sum is σ = 32224871560. Its totient is φ = 8936308656.

The previous prime is 18143414803. The next prime is 18143414819. The reversal of 18143414812 is 21841434181.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18143414819) 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, 33849387 + ... + 33849922.

Almost surely, 2^18143414812 is an apocalyptic number.

It is an amenable number.

18143414812 is a deficient number, since it is larger than the sum of its proper divisors (14081456748).

18143414812 is a wasteful number, since it uses less digits than its factorization.

18143414812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67699380 (or 67699378 counting only the distinct ones).

The product of its digits is 24576, while the sum is 37.

Adding to 18143414812 its reverse (21841434181), we get a palindrome (39984848993).

The spelling of 18143414812 in words is "eighteen billion, one hundred forty-three million, four hundred fourteen thousand, eight hundred twelve".