12747802446721 has 8 divisors (see below), whose sum is σ = 12922603477280. Its totient is φ = 12573006108192.

The previous prime is 12747802446671. The next prime is 12747802446727. The reversal of 12747802446721 is 12764420874721.

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 12747802446721 - 2¹¹ = 12747802444673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12747802446727) 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, 4483810 + ... + 6752788.

It is an arithmetic number, because the mean of its divisors is an integer number (1615325434660).

Almost surely, 2^{12747802446721} is an apocalyptic number.

It is an amenable number.

12747802446721 is a deficient number, since it is larger than the sum of its proper divisors (174801030559).

12747802446721 is an equidigital number, since it uses as much as digits as its factorization.

12747802446721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346015.

The product of its (nonzero) digits is 8429568, while the sum is 55.

The spelling of 12747802446721 in words is "twelve trillion, seven hundred forty-seven billion, eight hundred two million, four hundred forty-six thousand, seven hundred twenty-one".