13908158409 has 8 divisors (see below), whose sum is σ = 18545526720. Its totient is φ = 9271447856.

The previous prime is 13908158387. The next prime is 13908158419. The reversal of 13908158409 is 90485180931.

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

It is a cyclic number.

It is not a de Polignac number, because 13908158409 - 2⁵ = 13908158377 is a prime.

It is a super-2 number, since 2×13908158409² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13908158419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112782 + ... + 201335.

It is an arithmetic number, because the mean of its divisors is an integer number (2318190840).

Almost surely, 2^13908158409 is an apocalyptic number.

It is an amenable number.

13908158409 is a deficient number, since it is larger than the sum of its proper divisors (4637368311).

13908158409 is a wasteful number, since it uses less digits than its factorization.

13908158409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328879.

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 13908158409 in words is "thirteen billion, nine hundred eight million, one hundred fifty-eight thousand, four hundred nine".