9944499180100 has 27 divisors (see below), whose sum is σ = 21579631651767. Its totient is φ = 3977787058080.

The previous prime is 9944499180089. The next prime is 9944499180101. The reversal of 9944499180100 is 10819944499.

The square root of 9944499180100 is 3153490.

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

It can be written as a sum of positive squares in 4 ways, for example, as 5305679200836 + 4638819979264 = 2303406^2 + 2153792^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9944499180101) 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, 31377226 + ... + 31692574.

Almost surely, 2^{9944499180100} is an apocalyptic number.

9944499180100 is the 3153490-th square number.

It is an amenable number.

9944499180100 is an abundant number, since it is smaller than the sum of its proper divisors (11635132471667).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9944499180100 is an frugal number, since it uses more digits than its factorization.

9944499180100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630712 (or 315356 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 58.

The spelling of 9944499180100 in words is "nine trillion, nine hundred forty-four billion, four hundred ninety-nine million, one hundred eighty thousand, one hundred".