1280069133269 has 2 divisors, whose sum is σ = 1280069133270. Its totient is φ = 1280069133268.

The previous prime is 1280069133263. The next prime is 1280069133373. The reversal of 1280069133269 is 9623319600821.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 805258559044 + 474810574225 = 897362^2 + 689065^2 .

It is a cyclic number.

It is not a de Polignac number, because 1280069133269 - 2²⁴ = 1280052356053 is a prime.

It is a super-2 number, since 2×1280069133269² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1280069133263) 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, 640034566634 + 640034566635.

It is an arithmetic number, because the mean of its divisors is an integer number (640034566635).

Almost surely, 2^{1280069133269} is an apocalyptic number.

It is an amenable number.

1280069133269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1280069133269 is an equidigital number, since it uses as much as digits as its factorization.

1280069133269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 1280069133269 in words is "one trillion, two hundred eighty billion, sixty-nine million, one hundred thirty-three thousand, two hundred sixty-nine".