9943099079824 has 15 divisors (see below), whose sum is σ = 19264778905017. Its totient is φ = 4971543233376.

The previous prime is 9943099079801. The next prime is 9943099079897. The reversal of 9943099079824 is 4289709903499.

It is a happy number.

The square root of 9943099079824 is 3153268.

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., 2894966131600 + 7048132948224 = 1701460^2 + 2654832^2 .

It is a super-2 number, since 2×9943099079824² (a number of 27 digits) contains 22 as substring.

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, 12218914 + ... + 13007230.

Almost surely, 2^{9943099079824} is an apocalyptic number.

9943099079824 is the 3153268-th square number.

It is an amenable number.

9943099079824 is a deficient number, since it is larger than the sum of its proper divisors (9321679825193).

9943099079824 is an frugal number, since it uses more digits than its factorization.

9943099079824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576642 (or 788319 counting only the distinct ones).

The product of its (nonzero) digits is 317447424, while the sum is 73.

The spelling of 9943099079824 in words is "nine trillion, nine hundred forty-three billion, ninety-nine million, seventy-nine thousand, eight hundred twenty-four".