13226612546513 has 4 divisors (see below), whose sum is σ = 13242961882980. Its totient is φ = 13210263210048.

The previous prime is 13226612546479. The next prime is 13226612546573. The reversal of 13226612546513 is 31564521662231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4626663337024 + 8599949209489 = 2150968^2 + 2932567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13226612546513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13226612546573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8174667020 + ... + 8174668637.

It is an arithmetic number, because the mean of its divisors is an integer number (3310740470745).

Almost surely, 2^{13226612546513} is an apocalyptic number.

It is an amenable number.

13226612546513 is a deficient number, since it is larger than the sum of its proper divisors (16349336467).

13226612546513 is an equidigital number, since it uses as much as digits as its factorization.

13226612546513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16349336466.

The product of its digits is 1555200, while the sum is 47.

The spelling of 13226612546513 in words is "thirteen trillion, two hundred twenty-six billion, six hundred twelve million, five hundred forty-six thousand, five hundred thirteen".