13478825905 has 8 divisors (see below), whose sum is σ = 16209528192. Its totient is φ = 10759769328.

The previous prime is 13478825903. The next prime is 13478825909. The reversal of 13478825905 is 50952887431.

It is a happy number.

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 13478825905 - 2¹ = 13478825903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13478825903) 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, 2908879 + ... + 2913508.

It is an arithmetic number, because the mean of its divisors is an integer number (2026191024).

Almost surely, 2^13478825905 is an apocalyptic number.

It is an amenable number.

13478825905 is a deficient number, since it is larger than the sum of its proper divisors (2730702287).

13478825905 is an equidigital number, since it uses as much as digits as its factorization.

13478825905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5822855.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 13478825905 in words is "thirteen billion, four hundred seventy-eight million, eight hundred twenty-five thousand, nine hundred five".