12344650621 has 4 divisors (see below), whose sum is σ = 12388582044. Its totient is φ = 12300719200.

The previous prime is 12344650613. The next prime is 12344650651. The reversal of 12344650621 is 12605644321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9898260100 + 2446390521 = 99490^2 + 49461^2 .

It is a cyclic number.

It is not a de Polignac number, because 12344650621 - 2³ = 12344650613 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 (12344650601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21965290 + ... + 21965851.

It is an arithmetic number, because the mean of its divisors is an integer number (3097145511).

Almost surely, 2^12344650621 is an apocalyptic number.

It is an amenable number.

12344650621 is a deficient number, since it is larger than the sum of its proper divisors (43931423).

12344650621 is an equidigital number, since it uses as much as digits as its factorization.

12344650621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43931422.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 12344650621 in words is "twelve billion, three hundred forty-four million, six hundred fifty thousand, six hundred twenty-one".