12783581816322 has 8 divisors (see below), whose sum is σ = 25567163632656. Its totient is φ = 4261193938772.

The previous prime is 12783581816279. The next prime is 12783581816323. The reversal of 12783581816322 is 22361818538721.

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

12783581816322 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12783581816323) 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, 1065298484688 + ... + 1065298484699.

It is an arithmetic number, because the mean of its divisors is an integer number (3195895454082).

Almost surely, 2^{12783581816322} is an apocalyptic number.

12783581816322 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.

12783581816322 is a wasteful number, since it uses less digits than its factorization.

12783581816322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130596969392.

The product of its digits is 7741440, while the sum is 57.

The spelling of 12783581816322 in words is "twelve trillion, seven hundred eighty-three billion, five hundred eighty-one million, eight hundred sixteen thousand, three hundred twenty-two".