9901441090 has 8 divisors (see below), whose sum is σ = 17822593980. Its totient is φ = 3960576432.

The previous prime is 9901441003. The next prime is 9901441091. The reversal of 9901441090 is 901441099.

It can be written as a sum of positive squares in 2 ways, for example, as 9327503241 + 573937849 = 96579^2 + 23957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (9901441091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495072045 + ... + 495072064.

Almost surely, 2^9901441090 is an apocalyptic number.

9901441090 is a deficient number, since it is larger than the sum of its proper divisors (7921152890).

9901441090 is a wasteful number, since it uses less digits than its factorization.

9901441090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990144116.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 9901441090 is about 99505.9851968714. The cubic root of 9901441090 is about 2147.3333508490. Note that the first 4 decimals are identical.

The spelling of 9901441090 in words is "nine billion, nine hundred one million, four hundred forty-one thousand, ninety".