12591271255 has 8 divisors (see below), whose sum is σ = 15998321232. Its totient is φ = 9480486528.

The previous prime is 12591271213. The next prime is 12591271307. The reversal of 12591271255 is 55217219521.

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 12591271255 - 2²³ = 12582882647 is a prime.

It is a super-2 number, since 2×12591271255² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74066217 + ... + 74066386.

It is an arithmetic number, because the mean of its divisors is an integer number (1999790154).

Almost surely, 2^12591271255 is an apocalyptic number.

12591271255 is a deficient number, since it is larger than the sum of its proper divisors (3407049977).

12591271255 is a wasteful number, since it uses less digits than its factorization.

12591271255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148132625.

The product of its digits is 63000, while the sum is 40.

The spelling of 12591271255 in words is "twelve billion, five hundred ninety-one million, two hundred seventy-one thousand, two hundred fifty-five".