12173571267 has 24 divisors (see below), whose sum is σ = 19213560912. Its totient is φ = 6810386880.

The previous prime is 12173571253. The next prime is 12173571269. The reversal of 12173571267 is 76217537121.

It is not a de Polignac number, because 12173571267 - 2⁶ = 12173571203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12173571269) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1285128 + ... + 1294565.

It is an arithmetic number, because the mean of its divisors is an integer number (800565038).

Almost surely, 2^12173571267 is an apocalyptic number.

12173571267 is a deficient number, since it is larger than the sum of its proper divisors (7039989645).

12173571267 is a wasteful number, since it uses less digits than its factorization.

12173571267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579731 (or 2579720 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The spelling of 12173571267 in words is "twelve billion, one hundred seventy-three million, five hundred seventy-one thousand, two hundred sixty-seven".