9911952789 has 8 divisors (see below), whose sum is σ = 13219698240. Its totient is φ = 6606087936.

The previous prime is 9911952779. The next prime is 9911952797. The reversal of 9911952789 is 9872591199.

9911952789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9911952789 - 2⁹ = 9911952277 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9911952709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457804 + ... + 478965.

It is an arithmetic number, because the mean of its divisors is an integer number (1652462280).

Almost surely, 2^9911952789 is an apocalyptic number.

It is an amenable number.

9911952789 is a deficient number, since it is larger than the sum of its proper divisors (3307745451).

9911952789 is a wasteful number, since it uses less digits than its factorization.

9911952789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940299.

The product of its digits is 3674160, while the sum is 60.

The square root of 9911952789 is about 99558.7906163991. The cubic root of 9911952789 is about 2148.0929755867.

The spelling of 9911952789 in words is "nine billion, nine hundred eleven million, nine hundred fifty-two thousand, seven hundred eighty-nine".