13808162409 has 16 divisors (see below), whose sum is σ = 19179599040. Its totient is φ = 8828695040.

The previous prime is 13808162393. The next prime is 13808162437. The reversal of 13808162409 is 90426180831.

It is a cyclic number.

It is not a de Polignac number, because 13808162409 - 2⁴ = 13808162393 is a prime.

It is a super-2 number, since 2×13808162409² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13808162509) 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 15 ways as a sum of consecutive naturals, for example, 944112 + ... + 958625.

It is an arithmetic number, because the mean of its divisors is an integer number (1198724940).

Almost surely, 2^13808162409 is an apocalyptic number.

It is an amenable number.

13808162409 is a deficient number, since it is larger than the sum of its proper divisors (5371436631).

13808162409 is a wasteful number, since it uses less digits than its factorization.

13808162409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902840.

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 13808162409 in words is "thirteen billion, eight hundred eight million, one hundred sixty-two thousand, four hundred nine".