12868755489940 has 96 divisors (see below), whose sum is σ = 31947037516800. Its totient is φ = 4351704231168.

The previous prime is 12868755489929. The next prime is 12868755489943. The reversal of 12868755489940 is 4998455786821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12868755489943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12347932 + ... + 13349491.

It is an arithmetic number, because the mean of its divisors is an integer number (332781640800).

Almost surely, 2^{12868755489940} is an apocalyptic number.

12868755489940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12868755489940 is an abundant number, since it is smaller than the sum of its proper divisors (19078282026860).

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

12868755489940 is a wasteful number, since it uses less digits than its factorization.

12868755489940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25697526 (or 25697510 counting only the distinct ones).

The product of its (nonzero) digits is 1393459200, while the sum is 76.

The spelling of 12868755489940 in words is "twelve trillion, eight hundred sixty-eight billion, seven hundred fifty-five million, four hundred eighty-nine thousand, nine hundred forty".