12579784522268 has 6 divisors (see below), whose sum is σ = 22014622913976. Its totient is φ = 6289892261132.

The previous prime is 12579784522267. The next prime is 12579784522271. The reversal of 12579784522268 is 86222548797521.

It is a junction number, because it is equal to n+sod(n) for n = 12579784522198 and 12579784522207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12579784522267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572473065280 + ... + 1572473065287.

It is an arithmetic number, because the mean of its divisors is an integer number (3669103818996).

Almost surely, 2^{12579784522268} is an apocalyptic number.

It is an amenable number.

12579784522268 is a deficient number, since it is larger than the sum of its proper divisors (9434838391708).

12579784522268 is a wasteful number, since it uses less digits than its factorization.

12579784522268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144946130571 (or 3144946130569 counting only the distinct ones).

The product of its digits is 270950400, while the sum is 68.

The spelling of 12579784522268 in words is "twelve trillion, five hundred seventy-nine billion, seven hundred eighty-four million, five hundred twenty-two thousand, two hundred sixty-eight".