12726106361 has 4 divisors (see below), whose sum is σ = 12727578000. Its totient is φ = 12724634724.

The previous prime is 12726106357. The next prime is 12726106363. The reversal of 12726106361 is 16360162721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12726106361 - 2² = 12726106357 is a prime.

It is a super-2 number, since 2×12726106361² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12726106363) 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, 722771 + ... + 740168.

It is an arithmetic number, because the mean of its divisors is an integer number (3181894500).

Almost surely, 2^12726106361 is an apocalyptic number.

It is an amenable number.

12726106361 is a deficient number, since it is larger than the sum of its proper divisors (1471639).

12726106361 is an equidigital number, since it uses as much as digits as its factorization.

12726106361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471638.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 12726106361 in words is "twelve billion, seven hundred twenty-six million, one hundred six thousand, three hundred sixty-one".