1129664865929 has 2 divisors, whose sum is σ = 1129664865930. Its totient is φ = 1129664865928.

The previous prime is 1129664865911. The next prime is 1129664865971. The reversal of 1129664865929 is 9295684669211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1099719255625 + 29945610304 = 1048675^2 + 173048^2 .

It is a cyclic number.

It is not a de Polignac number, because 1129664865929 - 2¹⁶ = 1129664800393 is a prime.

It is a super-2 number, since 2×1129664865929² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1129664862929) 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, 564832432964 + 564832432965.

It is an arithmetic number, because the mean of its divisors is an integer number (564832432965).

Almost surely, 2^{1129664865929} is an apocalyptic number.

It is an amenable number.

1129664865929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129664865929 is an equidigital number, since it uses as much as digits as its factorization.

1129664865929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100776960, while the sum is 68.

The spelling of 1129664865929 in words is "one trillion, one hundred twenty-nine billion, six hundred sixty-four million, eight hundred sixty-five thousand, nine hundred twenty-nine".