9988204009744 has 45 divisors (see below), whose sum is σ = 19441291354149. Its totient is φ = 4971201659520.

The previous prime is 9988204009669. The next prime is 9988204009747. The reversal of 9988204009744 is 4479004028899.

The square root of 9988204009744 is 3160412.

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., 2028402608400 + 7959801401344 = 1424220^2 + 2821312^2 .

It is a super-2 number, since 2×9988204009744² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9988204009747) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2945502289 + ... + 2945505679.

Almost surely, 2^{9988204009744} is an apocalyptic number.

9988204009744 is the 3160412-nd square number.

It is an amenable number.

9988204009744 is a deficient number, since it is larger than the sum of its proper divisors (9453087344405).

9988204009744 is an frugal number, since it uses more digits than its factorization.

9988204009744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7256 (or 3626 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 64.

Multiplying 9988204009744 by its sum of digits (64), we get a square (639245056623616 = 25283296²).

The spelling of 9988204009744 in words is "nine trillion, nine hundred eighty-eight billion, two hundred four million, nine thousand, seven hundred forty-four".