12740766868721 has 8 divisors (see below), whose sum is σ = 13140677188224. Its totient is φ = 12346224473200.

The previous prime is 12740766868703. The next prime is 12740766868729. The reversal of 12740766868721 is 12786866704721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12740766868721 - 2²² = 12740762674417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12740766868729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341976175 + ... + 1341985668.

It is an arithmetic number, because the mean of its divisors is an integer number (1642584648528).

Almost surely, 2^{12740766868721} is an apocalyptic number.

It is an amenable number.

12740766868721 is a deficient number, since it is larger than the sum of its proper divisors (399910319503).

12740766868721 is a wasteful number, since it uses less digits than its factorization.

12740766868721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683961991.

The product of its (nonzero) digits is 75866112, while the sum is 65.

The spelling of 12740766868721 in words is "twelve trillion, seven hundred forty billion, seven hundred sixty-six million, eight hundred sixty-eight thousand, seven hundred twenty-one".