9729968911 has 8 divisors (see below), whose sum is σ = 10483077920. Its totient is φ = 8977524192.

The previous prime is 9729968909. The next prime is 9729968957. The reversal of 9729968911 is 1198699279.

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

It is not a de Polignac number, because 9729968911 - 2¹ = 9729968909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9729968911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9729963911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135435 + ... + 194428.

It is an arithmetic number, because the mean of its divisors is an integer number (1310384740).

Almost surely, 2^9729968911 is an apocalyptic number.

9729968911 is a deficient number, since it is larger than the sum of its proper divisors (753109009).

9729968911 is a wasteful number, since it uses less digits than its factorization.

9729968911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332145.

The product of its digits is 4408992, while the sum is 61.

The square root of 9729968911 is about 98640.6047781541. The cubic root of 9729968911 is about 2134.8653291460.

The spelling of 9729968911 in words is "nine billion, seven hundred twenty-nine million, nine hundred sixty-eight thousand, nine hundred eleven".