9287961166669 has 2 divisors, whose sum is σ = 9287961166670. Its totient is φ = 9287961166668.

The previous prime is 9287961166661. The next prime is 9287961166691. The reversal of 9287961166669 is 9666611697829.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8109082046025 + 1178879120644 = 2847645^2 + 1085762^2 .

It is a cyclic number.

It is not a de Polignac number, because 9287961166669 - 2³ = 9287961166661 is a prime.

It is a super-2 number, since 2×9287961166669² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9287961166595 and 9287961166604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9287961166661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4643980583334 + 4643980583335.

It is an arithmetic number, because the mean of its divisors is an integer number (4643980583335).

Almost surely, 2^{9287961166669} is an apocalyptic number.

It is an amenable number.

9287961166669 is a deficient number, since it is larger than the sum of its proper divisors (1).

9287961166669 is an equidigital number, since it uses as much as digits as its factorization.

9287961166669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 634894848, while the sum is 76.

The spelling of 9287961166669 in words is "nine trillion, two hundred eighty-seven billion, nine hundred sixty-one million, one hundred sixty-six thousand, six hundred sixty-nine".