9641215169 has 2 divisors, whose sum is σ = 9641215170. Its totient is φ = 9641215168.

The previous prime is 9641215153. The next prime is 9641215289. The reversal of 9641215169 is 9615121469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9626160769 + 15054400 = 98113^2 + 3880^2 .

It is a cyclic number.

It is not a de Polignac number, because 9641215169 - 2⁴ = 9641215153 is a prime.

It is a super-2 number, since 2×9641215169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9641215069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4820607584 + 4820607585.

It is an arithmetic number, because the mean of its divisors is an integer number (4820607585).

Almost surely, 2^9641215169 is an apocalyptic number.

It is an amenable number.

9641215169 is a deficient number, since it is larger than the sum of its proper divisors (1).

9641215169 is an equidigital number, since it uses as much as digits as its factorization.

9641215169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 44.

The square root of 9641215169 is about 98189.6897286064. The cubic root of 9641215169 is about 2128.3542997224.

The spelling of 9641215169 in words is "nine billion, six hundred forty-one million, two hundred fifteen thousand, one hundred sixty-nine".