9678657106231 has 2 divisors, whose sum is σ = 9678657106232. Its totient is φ = 9678657106230.

The previous prime is 9678657106189. The next prime is 9678657106249. The reversal of 9678657106231 is 1326017568769.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9678657106231 - 2¹¹ = 9678657104183 is a prime.

It is a super-2 number, since 2×9678657106231² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9678657106231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9678657146231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4839328553115 + 4839328553116.

It is an arithmetic number, because the mean of its divisors is an integer number (4839328553116).

Almost surely, 2^{9678657106231} is an apocalyptic number.

9678657106231 is a deficient number, since it is larger than the sum of its proper divisors (1).

9678657106231 is an equidigital number, since it uses as much as digits as its factorization.

9678657106231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 9678657106231 in words is "nine trillion, six hundred seventy-eight billion, six hundred fifty-seven million, one hundred six thousand, two hundred thirty-one".