12644352001 has 8 divisors (see below), whose sum is σ = 12746625408. Its totient is φ = 12542166000.

The previous prime is 12644351983. The next prime is 12644352059. The reversal of 12644352001 is 10025344621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12644352001 - 2¹³ = 12644343809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12644452001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286056 + ... + 327286.

It is an arithmetic number, because the mean of its divisors is an integer number (1593328176).

Almost surely, 2^12644352001 is an apocalyptic number.

It is an amenable number.

12644352001 is a deficient number, since it is larger than the sum of its proper divisors (102273407).

12644352001 is a wasteful number, since it uses less digits than its factorization.

12644352001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43703.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 12644352001 its reverse (10025344621), we get a palindrome (22669696622).

It can be divided in two parts, 1264435 and 2001, that added together give a triangular number (1266436 = T₁₅₉₁).

The spelling of 12644352001 in words is "twelve billion, six hundred forty-four million, three hundred fifty-two thousand, one".