9911339539984 has 15 divisors (see below), whose sum is σ = 19203244757517. Its totient is φ = 4955663473536.

The previous prime is 9911339539957. The next prime is 9911339540083. The reversal of 9911339539984 is 4899359331199.

The square root of 9911339539984 is 3148228.

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., 2204452867600 + 7706886672384 = 1484740^2 + 2776128^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12199384 + ... + 12986440.

Almost surely, 2^{9911339539984} is an apocalyptic number.

9911339539984 is the 3148228-th square number.

It is an amenable number.

9911339539984 is a deficient number, since it is larger than the sum of its proper divisors (9291905217533).

9911339539984 is an frugal number, since it uses more digits than its factorization.

9911339539984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574122 (or 787059 counting only the distinct ones).

The product of its digits is 255091680, while the sum is 73.

The spelling of 9911339539984 in words is "nine trillion, nine hundred eleven billion, three hundred thirty-nine million, five hundred thirty-nine thousand, nine hundred eighty-four".