12718784650056 has 128 divisors (see below), whose sum is σ = 34377965308800. Its totient is φ = 3907578931200.

The previous prime is 12718784649937. The next prime is 12718784650069. The reversal of 12718784650056 is 65005648781721.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271160206 + ... + 271207106.

It is an arithmetic number, because the mean of its divisors is an integer number (268577853975).

Almost surely, 2^{12718784650056} 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 12718784650056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17188982654400).

12718784650056 is an abundant number, since it is smaller than the sum of its proper divisors (21659180658744).

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

12718784650056 is a wasteful number, since it uses less digits than its factorization.

12718784650056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63039 (or 63035 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 60.

The spelling of 12718784650056 in words is "twelve trillion, seven hundred eighteen billion, seven hundred eighty-four million, six hundred fifty thousand, fifty-six".