9681538110011 has 16 divisors (see below), whose sum is σ = 10260561600000. Its totient is φ = 9109474377696.

The previous prime is 9681538110001. The next prime is 9681538110067. The reversal of 9681538110011 is 1100118351869.

It is a cyclic number.

It is not a de Polignac number, because 9681538110011 - 2¹⁰ = 9681538108987 is a prime.

It is a super-3 number, since 3×9681538110011³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9681538110001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27680420 + ... + 28027998.

It is an arithmetic number, because the mean of its divisors is an integer number (641285100000).

Almost surely, 2^{9681538110011} is an apocalyptic number.

9681538110011 is a deficient number, since it is larger than the sum of its proper divisors (579023489989).

9681538110011 is a wasteful number, since it uses less digits than its factorization.

9681538110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357586.

The product of its (nonzero) digits is 51840, while the sum is 44.

The spelling of 9681538110011 in words is "nine trillion, six hundred eighty-one billion, five hundred thirty-eight million, one hundred ten thousand, eleven".