1304969542409 has 4 divisors (see below), whose sum is σ = 1405351814916. Its totient is φ = 1204587269904.

The previous prime is 1304969542397. The next prime is 1304969542417. The reversal of 1304969542409 is 9042459694031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 320899590400 + 984069952009 = 566480^2 + 992003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304969542409 - 2¹⁶ = 1304969476873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304969542609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50191136234 + ... + 50191136259.

It is an arithmetic number, because the mean of its divisors is an integer number (351337953729).

Almost surely, 2^{1304969542409} is an apocalyptic number.

It is an amenable number.

1304969542409 is a deficient number, since it is larger than the sum of its proper divisors (100382272507).

1304969542409 is a wasteful number, since it uses less digits than its factorization.

1304969542409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100382272506.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 1304969542409 in words is "one trillion, three hundred four billion, nine hundred sixty-nine million, five hundred forty-two thousand, four hundred nine".