13871340305 has 8 divisors (see below), whose sum is σ = 16646301672. Its totient is φ = 11096610048.

The previous prime is 13871340299. The next prime is 13871340323. The reversal of 13871340305 is 50304317831.

It can be written as a sum of positive squares in 4 ways, for example, as 132687361 + 13738652944 = 11519^2 + 117212^2 .

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 13871340305 - 2⁴ = 13871340289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 129407 + ... + 210923.

It is an arithmetic number, because the mean of its divisors is an integer number (2080787709).

Almost surely, 2^13871340305 is an apocalyptic number.

It is an amenable number.

13871340305 is a deficient number, since it is larger than the sum of its proper divisors (2774961367).

13871340305 is an equidigital number, since it uses as much as digits as its factorization.

13871340305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115555.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 13871340305 in words is "thirteen billion, eight hundred seventy-one million, three hundred forty thousand, three hundred five".