9901443050 has 24 divisors (see below), whose sum is σ = 18422192556. Its totient is φ = 3959392640.

The previous prime is 9901443049. The next prime is 9901443091. The reversal of 9901443050 is 503441099.

It can be written as a sum of positive squares in 6 ways, for example, as 3522066409 + 6379376641 = 59347^2 + 79871^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9901443050.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150014 + ... + 205686.

Almost surely, 2^9901443050 is an apocalyptic number.

9901443050 is a deficient number, since it is larger than the sum of its proper divisors (8520749506).

9901443050 is a wasteful number, since it uses less digits than its factorization.

9901443050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59242 (or 59237 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 9901443050 is about 99505.9950455248. The cubic root of 9901443050 is about 2147.3334925379. Note that the first 3 decimals are identical.

The spelling of 9901443050 in words is "nine billion, nine hundred one million, four hundred forty-three thousand, fifty".