12344420773 has 4 divisors (see below), whose sum is σ = 12483122220. Its totient is φ = 12205719328.

The previous prime is 12344420677. The next prime is 12344420791. The reversal of 12344420773 is 37702444321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37702444321 = 97 ⋅388684993.

It can be written as a sum of positive squares in 2 ways, for example, as 662702049 + 11681718724 = 25743^2 + 108082^2 .

It is a cyclic number.

It is not a de Polignac number, because 12344420773 - 2¹⁷ = 12344289701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344420173) 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, 69350590 + ... + 69350767.

It is an arithmetic number, because the mean of its divisors is an integer number (3120780555).

Almost surely, 2^12344420773 is an apocalyptic number.

It is an amenable number.

12344420773 is a deficient number, since it is larger than the sum of its proper divisors (138701447).

12344420773 is an equidigital number, since it uses as much as digits as its factorization.

12344420773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138701446.

The product of its (nonzero) digits is 112896, while the sum is 37.

The spelling of 12344420773 in words is "twelve billion, three hundred forty-four million, four hundred twenty thousand, seven hundred seventy-three".