9618684868169 has 8 divisors (see below), whose sum is σ = 10415813450952. Its totient is φ = 8829731963520.

The previous prime is 9618684868159. The next prime is 9618684868181.

9618684868169 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 6285318400 + 9612399549769 = 79280^2 + 3100387^2 .

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

It is not a de Polignac number, because 9618684868169 - 2¹² = 9618684864073 is a prime.

It is a super-2 number, since 2×9618684868169² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9618684868093 and 9618684868102.

It is not an unprimeable number, because it can be changed into a prime (9618684868159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2043917084 + ... + 2043921789.

It is an arithmetic number, because the mean of its divisors is an integer number (1301976681369).

Almost surely, 2^{9618684868169} is an apocalyptic number.

It is an amenable number.

9618684868169 is a deficient number, since it is larger than the sum of its proper divisors (797128582783).

9618684868169 is a wasteful number, since it uses less digits than its factorization.

9618684868169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087839067.

The product of its digits is 1719926784, while the sum is 80.

The spelling of 9618684868169 in words is "nine trillion, six hundred eighteen billion, six hundred eighty-four million, eight hundred sixty-eight thousand, one hundred sixty-nine".