13126380344815 has 16 divisors (see below), whose sum is σ = 16438008619008. Its totient is φ = 10043619338016.

The previous prime is 13126380344741. The next prime is 13126380344821. The reversal of 13126380344815 is 51844308362131.

It is a cyclic number.

It is not a de Polignac number, because 13126380344815 - 2⁹ = 13126380344303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3930927 + ... + 6457936.

It is an arithmetic number, because the mean of its divisors is an integer number (1027375538688).

Almost surely, 2^{13126380344815} is an apocalyptic number.

13126380344815 is a deficient number, since it is larger than the sum of its proper divisors (3311628274193).

13126380344815 is a wasteful number, since it uses less digits than its factorization.

13126380344815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10399878.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 13126380344815 in words is "thirteen trillion, one hundred twenty-six billion, three hundred eighty million, three hundred forty-four thousand, eight hundred fifteen".