1282309116809 has 12 divisors (see below), whose sum is σ = 1506174634944. Its totient is φ = 1069416089424.

The previous prime is 1282309116763. The next prime is 1282309116821. The reversal of 1282309116809 is 9086119032821.

It is not a de Polignac number, because 1282309116809 - 2¹² = 1282309112713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1282309116839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66895829 + ... + 66914994.

It is an arithmetic number, because the mean of its divisors is an integer number (125514552912).

Almost surely, 2^{1282309116809} is an apocalyptic number.

It is an amenable number.

1282309116809 is a deficient number, since it is larger than the sum of its proper divisors (223865518135).

1282309116809 is an equidigital number, since it uses as much as digits as its factorization.

1282309116809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133810904 (or 133810867 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 50.

The spelling of 1282309116809 in words is "one trillion, two hundred eighty-two billion, three hundred nine million, one hundred sixteen thousand, eight hundred nine".