1317701959744 has 21 divisors (see below), whose sum is σ = 2614833049597. Its totient is φ = 658846388224.

The previous prime is 1317701959729. The next prime is 1317701959747. The reversal of 1317701959744 is 4479591077131.

The square root of 1317701959744 is 1147912.

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

It can be written as a sum of positive squares in only one way, i.e., 492366049344 + 825335910400 = 701688^2 + 908480^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317701959747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9111552 + ... + 9255040.

Almost surely, 2^{1317701959744} is an apocalyptic number.

1317701959744 is the 1147912-nd square number.

It is an amenable number.

1317701959744 is a deficient number, since it is larger than the sum of its proper divisors (1297131089853).

1317701959744 is an frugal number, since it uses more digits than its factorization.

1317701959744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286990 (or 143491 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 58.

The spelling of 1317701959744 in words is "one trillion, three hundred seventeen billion, seven hundred one million, nine hundred fifty-nine thousand, seven hundred forty-four".