1288318515472 has 20 divisors (see below), whose sum is σ = 2496653260636. Its totient is φ = 644020899840.

The previous prime is 1288318515457. The next prime is 1288318515509. The reversal of 1288318515472 is 2745158138821.

It can be written as a sum of positive squares in 2 ways, for example, as 565961308416 + 722357207056 = 752304^2 + 849916^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8570529 + ... + 8719552.

Almost surely, 2^{1288318515472} is an apocalyptic number.

It is an amenable number.

1288318515472 is a deficient number, since it is larger than the sum of its proper divisors (1208334745164).

1288318515472 is a wasteful number, since it uses less digits than its factorization.

1288318515472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17294746 (or 17294740 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 55.

The spelling of 1288318515472 in words is "one trillion, two hundred eighty-eight billion, three hundred eighteen million, five hundred fifteen thousand, four hundred seventy-two".