13266138427409 has 8 divisors (see below), whose sum is σ = 15684104544960. Its totient is φ = 10978873181136.

The previous prime is 13266138427393. The next prime is 13266138427433. The reversal of 13266138427409 is 90472483166231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13266138427409 - 2⁴ = 13266138427393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13266138427709) 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 7 ways as a sum of consecutive naturals, for example, 32675217599 + ... + 32675218004.

It is an arithmetic number, because the mean of its divisors is an integer number (1960513068120).

Almost surely, 2^{13266138427409} is an apocalyptic number.

It is an amenable number.

13266138427409 is a deficient number, since it is larger than the sum of its proper divisors (2417966117551).

13266138427409 is an equidigital number, since it uses as much as digits as its factorization.

13266138427409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65350435639.

The product of its (nonzero) digits is 10450944, while the sum is 56.

The spelling of 13266138427409 in words is "thirteen trillion, two hundred sixty-six billion, one hundred thirty-eight million, four hundred twenty-seven thousand, four hundred nine".