12897581960718 has 432 divisors, whose sum is σ = 36505900594800. Its totient is φ = 3275966453760.

The previous prime is 12897581960687. The next prime is 12897581960737. The reversal of 12897581960718 is 81706918579821.

12897581960718 is a `hidden beast` number, since 1 + 2 + 8 + 9 + 7 + 5 + 8 + 1 + 9 + 607 + 1 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 1811200198 + ... + 1811207318.

It is an arithmetic number, because the mean of its divisors is an integer number (84504399525).

Almost surely, 2^{12897581960718} is an apocalyptic number.

12897581960718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12897581960718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18252950297400).

12897581960718 is an abundant number, since it is smaller than the sum of its proper divisors (23608318634082).

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

12897581960718 is a wasteful number, since it uses less digits than its factorization.

12897581960718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7617 (or 7594 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 72.

The spelling of 12897581960718 in words is "twelve trillion, eight hundred ninety-seven billion, five hundred eighty-one million, nine hundred sixty thousand, seven hundred eighteen".