9306681285891 has 12 divisors (see below), whose sum is σ = 13639543923656. Its totient is φ = 5640412900320.

The previous prime is 9306681285877. The next prime is 9306681285929. The reversal of 9306681285891 is 1985821866039.

9306681285891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9306681285891 - 2¹⁴ = 9306681269507 is a prime.

It is a super-2 number, since 2×9306681285891² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9306681285841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12819119866 + ... + 12819120591.

Almost surely, 2^{9306681285891} is an apocalyptic number.

9306681285891 is a deficient number, since it is larger than the sum of its proper divisors (4332862637765).

9306681285891 is a wasteful number, since it uses less digits than its factorization.

9306681285891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25638240482 (or 25638240471 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 66.

The spelling of 9306681285891 in words is "nine trillion, three hundred six billion, six hundred eighty-one million, two hundred eighty-five thousand, eight hundred ninety-one".