12272661673 has 4 divisors (see below), whose sum is σ = 12273009408. Its totient is φ = 12272313940.

The previous prime is 12272661629. The next prime is 12272661679. The reversal of 12272661673 is 37616627221.

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 12272661673 - 2⁹ = 12272661161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12272661679) 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, 114073 + ... + 193798.

It is an arithmetic number, because the mean of its divisors is an integer number (3068252352).

Almost surely, 2^12272661673 is an apocalyptic number.

It is an amenable number.

12272661673 is a deficient number, since it is larger than the sum of its proper divisors (347735).

12272661673 is an equidigital number, since it uses as much as digits as its factorization.

12272661673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347734.

The product of its digits is 254016, while the sum is 43.

The spelling of 12272661673 in words is "twelve billion, two hundred seventy-two million, six hundred sixty-one thousand, six hundred seventy-three".