12766816744 has 16 divisors (see below), whose sum is σ = 26113943520. Its totient is φ = 5803098480.

The previous prime is 12766816721. The next prime is 12766816763. The reversal of 12766816744 is 44761866721.

It is a junction number, because it is equal to n+sod(n) for n = 12766816691 and 12766816700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72538644 + ... + 72538819.

It is an arithmetic number, because the mean of its divisors is an integer number (1632121470).

Almost surely, 2^12766816744 is an apocalyptic number.

It is an amenable number.

12766816744 is an abundant number, since it is smaller than the sum of its proper divisors (13347126776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12766816744 is a wasteful number, since it uses less digits than its factorization.

12766816744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145077480 (or 145077476 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 52.

The spelling of 12766816744 in words is "twelve billion, seven hundred sixty-six million, eight hundred sixteen thousand, seven hundred forty-four".