12820888649363 has 2 divisors, whose sum is σ = 12820888649364. Its totient is φ = 12820888649362.

The previous prime is 12820888649353. The next prime is 12820888649423. The reversal of 12820888649363 is 36394688802821.

12820888649363 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12820888649363 - 2¹⁶ = 12820888583827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12820888649293 and 12820888649302.

It is not a weakly prime, because it can be changed into another prime (12820888649353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6410444324681 + 6410444324682.

It is an arithmetic number, because the mean of its divisors is an integer number (6410444324682).

Almost surely, 2^{12820888649363} is an apocalyptic number.

12820888649363 is a deficient number, since it is larger than the sum of its proper divisors (1).

12820888649363 is an equidigital number, since it uses as much as digits as its factorization.

12820888649363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 191102976, while the sum is 68.

The spelling of 12820888649363 in words is "twelve trillion, eight hundred twenty billion, eight hundred eighty-eight million, six hundred forty-nine thousand, three hundred sixty-three".