13426506442655 has 4 divisors (see below), whose sum is σ = 16111807731192. Its totient is φ = 10741205154120.

The previous prime is 13426506442633. The next prime is 13426506442799. The reversal of 13426506442655 is 55624460562431.

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

It is not a de Polignac number, because 13426506442655 - 2²⁸ = 13426238007199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13426506442597 and 13426506442606.

It is a congruent number.

It is an unprimeable number.

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, 1342650644261 + ... + 1342650644270.

It is an arithmetic number, because the mean of its divisors is an integer number (4027951932798).

Almost surely, 2^{13426506442655} is an apocalyptic number.

13426506442655 is a deficient number, since it is larger than the sum of its proper divisors (2685301288537).

13426506442655 is an equidigital number, since it uses as much as digits as its factorization.

13426506442655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685301288536.

The product of its (nonzero) digits is 20736000, while the sum is 53.

The spelling of 13426506442655 in words is "thirteen trillion, four hundred twenty-six billion, five hundred six million, four hundred forty-two thousand, six hundred fifty-five".