12423766673 has 4 divisors (see below), whose sum is σ = 12456547440. Its totient is φ = 12390985908.

The previous prime is 12423766661. The next prime is 12423766697. The reversal of 12423766673 is 37666732421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37666732421 = 173 ⋅217726777.

It is a cyclic number.

It is not a de Polignac number, because 12423766673 - 2⁶ = 12423766609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12423766643) 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, 16389815 + ... + 16390572.

It is an arithmetic number, because the mean of its divisors is an integer number (3114136860).

Almost surely, 2^12423766673 is an apocalyptic number.

It is an amenable number.

12423766673 is a deficient number, since it is larger than the sum of its proper divisors (32780767).

12423766673 is an equidigital number, since it uses as much as digits as its factorization.

12423766673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32780766.

The product of its digits is 1524096, while the sum is 47.

The spelling of 12423766673 in words is "twelve billion, four hundred twenty-three million, seven hundred sixty-six thousand, six hundred seventy-three".