12720782216733 has 32 divisors (see below), whose sum is σ = 17578828431360. Its totient is φ = 8173845934080.

The previous prime is 12720782216731. The next prime is 12720782216761. The reversal of 12720782216733 is 33761228702721.

12720782216733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12720782216733 - 2¹ = 12720782216731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12720782216731) 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, 184648588 + ... + 184717466.

It is an arithmetic number, because the mean of its divisors is an integer number (549338388480).

Almost surely, 2^{12720782216733} is an apocalyptic number.

It is an amenable number.

12720782216733 is a deficient number, since it is larger than the sum of its proper divisors (4858046214627).

12720782216733 is a wasteful number, since it uses less digits than its factorization.

12720782216733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76897.

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 12720782216733 in words is "twelve trillion, seven hundred twenty billion, seven hundred eighty-two million, two hundred sixteen thousand, seven hundred thirty-three".