12551297171 has 4 divisors (see below), whose sum is σ = 14344339632. Its totient is φ = 10758254712.

The previous prime is 12551297167. The next prime is 12551297233. The reversal of 12551297171 is 17179215521.

12551297171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12551297171 - 2² = 12551297167 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12551297071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896521220 + ... + 896521233.

It is an arithmetic number, because the mean of its divisors is an integer number (3586084908).

Almost surely, 2^12551297171 is an apocalyptic number.

12551297171 is a deficient number, since it is larger than the sum of its proper divisors (1793042461).

12551297171 is an equidigital number, since it uses as much as digits as its factorization.

12551297171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793042460.

The product of its digits is 44100, while the sum is 41.

The spelling of 12551297171 in words is "twelve billion, five hundred fifty-one million, two hundred ninety-seven thousand, one hundred seventy-one".