13563013622273 has 2 divisors, whose sum is σ = 13563013622274. Its totient is φ = 13563013622272.

The previous prime is 13563013622261. The next prime is 13563013622441. The reversal of 13563013622273 is 37222631036531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12565238383504 + 997775238769 = 3544748^2 + 998887^2 .

It is a cyclic number.

It is not a de Polignac number, because 13563013622273 - 2⁸ = 13563013622017 is a prime.

It is not a weakly prime, because it can be changed into another prime (13563013622233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6781506811136 + 6781506811137.

It is an arithmetic number, because the mean of its divisors is an integer number (6781506811137).

Almost surely, 2^{13563013622273} is an apocalyptic number.

It is an amenable number.

13563013622273 is a deficient number, since it is larger than the sum of its proper divisors (1).

13563013622273 is an equidigital number, since it uses as much as digits as its factorization.

13563013622273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 44.

The spelling of 13563013622273 in words is "thirteen trillion, five hundred sixty-three billion, thirteen million, six hundred twenty-two thousand, two hundred seventy-three".