12318613476 has 72 divisors (see below), whose sum is σ = 31149820800. Its totient is φ = 3787265664.

The previous prime is 12318613471. The next prime is 12318613477. The reversal of 12318613476 is 67431681321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12318613471) 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, 4831450 + ... + 4833998.

It is an arithmetic number, because the mean of its divisors is an integer number (432636400).

Almost surely, 2^12318613476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12318613476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15574910400).

12318613476 is an abundant number, since it is smaller than the sum of its proper divisors (18831207324).

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

12318613476 is a wasteful number, since it uses less digits than its factorization.

12318613476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4965 (or 4950 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The spelling of 12318613476 in words is "twelve billion, three hundred eighteen million, six hundred thirteen thousand, four hundred seventy-six".