12738037171 has 4 divisors (see below), whose sum is σ = 13408460200. Its totient is φ = 12067614144.

The previous prime is 12738037087. The next prime is 12738037177. The reversal of 12738037171 is 17173083721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17173083721 = 6121 ⋅2805601.

It is a cyclic number.

It is not a de Polignac number, because 12738037171 - 2⁹ = 12738036659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12738037177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335211486 + ... + 335211523.

It is an arithmetic number, because the mean of its divisors is an integer number (3352115050).

Almost surely, 2^12738037171 is an apocalyptic number.

12738037171 is a deficient number, since it is larger than the sum of its proper divisors (670423029).

12738037171 is an equidigital number, since it uses as much as digits as its factorization.

12738037171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670423028.

The product of its (nonzero) digits is 49392, while the sum is 40.

The spelling of 12738037171 in words is "twelve billion, seven hundred thirty-eight million, thirty-seven thousand, one hundred seventy-one".