12766625127539 has 4 divisors (see below), whose sum is σ = 12832773444456. Its totient is φ = 12700476810624.

The previous prime is 12766625127479. The next prime is 12766625127541. The reversal of 12766625127539 is 93572152666721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12766625127539 is a prime.

It is a super-2 number, since 2×12766625127539² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12766625127569) 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, 33074158169 + ... + 33074158554.

It is an arithmetic number, because the mean of its divisors is an integer number (3208193361114).

Almost surely, 2^{12766625127539} is an apocalyptic number.

12766625127539 is a deficient number, since it is larger than the sum of its proper divisors (66148316917).

12766625127539 is an equidigital number, since it uses as much as digits as its factorization.

12766625127539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66148316916.

The product of its digits is 57153600, while the sum is 62.

The spelling of 12766625127539 in words is "twelve trillion, seven hundred sixty-six billion, six hundred twenty-five million, one hundred twenty-seven thousand, five hundred thirty-nine".