13420013409 has 12 divisors (see below), whose sum is σ = 21146687952. Its totient is φ = 8133341400.

The previous prime is 13420013393. The next prime is 13420013417. The reversal of 13420013409 is 90431002431.

It is not a de Polignac number, because 13420013409 - 2⁴ = 13420013393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13420013449) 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, 67777747 + ... + 67777944.

It is an arithmetic number, because the mean of its divisors is an integer number (1762223996).

Almost surely, 2^13420013409 is an apocalyptic number.

It is an amenable number.

13420013409 is a deficient number, since it is larger than the sum of its proper divisors (7726674543).

13420013409 is a wasteful number, since it uses less digits than its factorization.

13420013409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135555708 (or 135555705 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 13420013409 in words is "thirteen billion, four hundred twenty million, thirteen thousand, four hundred nine".