12645750772744 has 32 divisors (see below), whose sum is σ = 24352422430680. Its totient is φ = 6151782795264.

The previous prime is 12645750772693. The next prime is 12645750772769. The reversal of 12645750772744 is 44727705754621.

It can be written as a sum of positive squares in 4 ways, for example, as 7372582562500 + 5273168210244 = 2715250^2 + 2296338^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8428674 + ... + 9814990.

Almost surely, 2^{12645750772744} is an apocalyptic number.

It is an amenable number.

12645750772744 is a deficient number, since it is larger than the sum of its proper divisors (11706671657936).

12645750772744 is a wasteful number, since it uses less digits than its factorization.

12645750772744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417177 (or 1417173 counting only the distinct ones).

The product of its (nonzero) digits is 92198400, while the sum is 61.

The spelling of 12645750772744 in words is "twelve trillion, six hundred forty-five billion, seven hundred fifty million, seven hundred seventy-two thousand, seven hundred forty-four".