12513777776265 has 16 divisors (see below), whose sum is σ = 20304045069696. Its totient is φ = 6580014604800.

The previous prime is 12513777776209. The next prime is 12513777776281. The reversal of 12513777776265 is 56267777731521.

It is a happy number.

It is not a de Polignac number, because 12513777776265 - 2¹⁰ = 12513777775241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12513777776196 and 12513777776205.

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 15 ways as a sum of consecutive naturals, for example, 5875011976 + ... + 5875014105.

It is an arithmetic number, because the mean of its divisors is an integer number (1269002816856).

Almost surely, 2^{12513777776265} is an apocalyptic number.

12513777776265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12513777776265 is a deficient number, since it is larger than the sum of its proper divisors (7790267293431).

12513777776265 is a wasteful number, since it uses less digits than its factorization.

12513777776265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11750026160.

The product of its digits is 181515600, while the sum is 66.

The spelling of 12513777776265 in words is "twelve trillion, five hundred thirteen billion, seven hundred seventy-seven million, seven hundred seventy-six thousand, two hundred sixty-five".