12998869506768 has 80 divisors (see below), whose sum is σ = 35449087016000. Its totient is φ = 4093144151040.

The previous prime is 12998869506719. The next prime is 12998869506769. The reversal of 12998869506768 is 86760596889921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12998869506769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20101693 + ... + 20738268.

It is an arithmetic number, because the mean of its divisors is an integer number (443113587700).

Almost surely, 2^{12998869506768} is an apocalyptic number.

It is an amenable number.

12998869506768 is an abundant number, since it is smaller than the sum of its proper divisors (22450217509232).

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

12998869506768 is a wasteful number, since it uses less digits than its factorization.

12998869506768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40840340 (or 40840334 counting only the distinct ones).

The product of its (nonzero) digits is 5643509760, while the sum is 84.

The spelling of 12998869506768 in words is "twelve trillion, nine hundred ninety-eight billion, eight hundred sixty-nine million, five hundred six thousand, seven hundred sixty-eight".