12195305718 has 8 divisors (see below), whose sum is σ = 24390611448. Its totient is φ = 4065101904.

The previous prime is 12195305713. The next prime is 12195305753. The reversal of 12195305718 is 81750359121.

It is a sphenic number, since it is the product of 3 distinct primes.

12195305718 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12195305718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12195305711) 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, 1016275471 + ... + 1016275482.

It is an arithmetic number, because the mean of its divisors is an integer number (3048826431).

Almost surely, 2^12195305718 is an apocalyptic number.

12195305718 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12195305718 is a wasteful number, since it uses less digits than its factorization.

12195305718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032550958.

The product of its (nonzero) digits is 75600, while the sum is 42.

The spelling of 12195305718 in words is "twelve billion, one hundred ninety-five million, three hundred five thousand, seven hundred eighteen".