12519781726068 has 96 divisors (see below), whose sum is σ = 33870895269120. Its totient is φ = 3991701985920.

The previous prime is 12519781726051. The next prime is 12519781726079. The reversal of 12519781726068 is 86062718791521.

12519781726068 is a `hidden beast` number, since 1 + 2 + 5 + 1 + 9 + 7 + 8 + 17 + 2 + 606 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12519781725996 and 12519781726014.

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, 172743358 + ... + 172815818.

It is an arithmetic number, because the mean of its divisors is an integer number (352821825720).

Almost surely, 2^{12519781726068} is an apocalyptic number.

12519781726068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12519781726068 is an abundant number, since it is smaller than the sum of its proper divisors (21351113543052).

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

12519781726068 is a wasteful number, since it uses less digits than its factorization.

12519781726068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142054 (or 142046 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 63.

The spelling of 12519781726068 in words is "twelve trillion, five hundred nineteen billion, seven hundred eighty-one million, seven hundred twenty-six thousand, sixty-eight".