12680857842772 has 96 divisors (see below), whose sum is σ = 26247068338176. Its totient is φ = 5245844428800.

The previous prime is 12680857842739. The next prime is 12680857842833. The reversal of 12680857842772 is 27724875808621.

It is a junction number, because it is equal to n+sod(n) for n = 12680857842698 and 12680857842707.

It is a congruent number.

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, 1539495438 + ... + 1539503674.

It is an arithmetic number, because the mean of its divisors is an integer number (273406961856).

Almost surely, 2^{12680857842772} 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 12680857842772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13123534169088).

12680857842772 is an abundant number, since it is smaller than the sum of its proper divisors (13566210495404).

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

12680857842772 is a wasteful number, since it uses less digits than its factorization.

12680857842772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12617 (or 12615 counting only the distinct ones).

The product of its (nonzero) digits is 168591360, while the sum is 67.

The spelling of 12680857842772 in words is "twelve trillion, six hundred eighty billion, eight hundred fifty-seven million, eight hundred forty-two thousand, seven hundred seventy-two".