12718747818824 has 32 divisors (see below), whose sum is σ = 24913520835840. Its totient is φ = 6080085422400.

The previous prime is 12718747818809. The next prime is 12718747818827. The reversal of 12718747818824 is 42881874781721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12718747818827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308926847 + ... + 308968014.

It is an arithmetic number, because the mean of its divisors is an integer number (778547526120).

Almost surely, 2^{12718747818824} is an apocalyptic number.

It is an amenable number.

12718747818824 is a deficient number, since it is larger than the sum of its proper divisors (12194773017016).

12718747818824 is a wasteful number, since it uses less digits than its factorization.

12718747818824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617894981 (or 617894977 counting only the distinct ones).

The product of its digits is 89915392, while the sum is 68.

The spelling of 12718747818824 in words is "twelve trillion, seven hundred eighteen billion, seven hundred forty-seven million, eight hundred eighteen thousand, eight hundred twenty-four".