12644562254 has 8 divisors (see below), whose sum is σ = 19000533960. Its totient is φ = 6311050936.

The previous prime is 12644562251. The next prime is 12644562257. The reversal of 12644562254 is 45226544621.

It is an interprime number because it is at equal distance from previous prime (12644562251) and next prime (12644562257).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12644562251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5613689 + ... + 5615940.

It is an arithmetic number, because the mean of its divisors is an integer number (2375066745).

Almost surely, 2^12644562254 is an apocalyptic number.

12644562254 is a deficient number, since it is larger than the sum of its proper divisors (6355971706).

12644562254 is a wasteful number, since it uses less digits than its factorization.

12644562254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11230194.

The product of its digits is 460800, while the sum is 41.

The spelling of 12644562254 in words is "twelve billion, six hundred forty-four million, five hundred sixty-two thousand, two hundred fifty-four".