12913292559049 has 3 divisors (see below), whose sum is σ = 12913296152557. Its totient is φ = 12913288965542.

The previous prime is 12913292559047. The next prime is 12913292559053. The reversal of 12913292559049 is 94095529231921.

The square root of 12913292559049 is 3593507.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 12913292559049 - 2¹ = 12913292559047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12913292559047) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1796754 + ... + 5390260.

Almost surely, 2^{12913292559049} is an apocalyptic number.

12913292559049 is the 3593507-th square number.

12913292559049 is the 1796754-th centered octagonal number.

It is an amenable number.

12913292559049 is a deficient number, since it is larger than the sum of its proper divisors (3593508).

12913292559049 is an frugal number, since it uses more digits than its factorization.

12913292559049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7187014 (or 3593507 counting only the distinct ones).

The product of its (nonzero) digits is 15746400, while the sum is 61.

The spelling of 12913292559049 in words is "twelve trillion, nine hundred thirteen billion, two hundred ninety-two million, five hundred fifty-nine thousand, forty-nine".