12710394721 has 4 divisors (see below), whose sum is σ = 12925825200. Its totient is φ = 12494964244.

The previous prime is 12710394701. The next prime is 12710394733. The reversal of 12710394721 is 12749301721.

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 12710394721 - 2⁵ = 12710394689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12710394701) 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 3 ways as a sum of consecutive naturals, for example, 107715151 + ... + 107715268.

It is an arithmetic number, because the mean of its divisors is an integer number (3231456300).

Almost surely, 2^12710394721 is an apocalyptic number.

It is an amenable number.

12710394721 is a deficient number, since it is larger than the sum of its proper divisors (215430479).

12710394721 is an equidigital number, since it uses as much as digits as its factorization.

12710394721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215430478.

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 12710394721 in words is "twelve billion, seven hundred ten million, three hundred ninety-four thousand, seven hundred twenty-one".