12387174261265 has 16 divisors (see below), whose sum is σ = 14868227836800. Its totient is φ = 9907327279872.

The previous prime is 12387174261263. The next prime is 12387174261299. The reversal of 12387174261265 is 56216247178321.

It is a cyclic number.

It is not a de Polignac number, because 12387174261265 - 2¹ = 12387174261263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12387174261263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584869446 + ... + 584890624.

It is an arithmetic number, because the mean of its divisors is an integer number (929264239800).

Almost surely, 2^{12387174261265} is an apocalyptic number.

It is an amenable number.

12387174261265 is a deficient number, since it is larger than the sum of its proper divisors (2481053575535).

12387174261265 is a wasteful number, since it uses less digits than its factorization.

12387174261265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44136.

The product of its digits is 6773760, while the sum is 55.

The spelling of 12387174261265 in words is "twelve trillion, three hundred eighty-seven billion, one hundred seventy-four million, two hundred sixty-one thousand, two hundred sixty-five".