12544440214 has 4 divisors (see below), whose sum is σ = 18816660324. Its totient is φ = 6272220106.

The previous prime is 12544440197. The next prime is 12544440239. The reversal of 12544440214 is 41204444521.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3136110052 + ... + 3136110055.

It is an arithmetic number, because the mean of its divisors is an integer number (4704165081).

Almost surely, 2^12544440214 is an apocalyptic number.

12544440214 is a deficient number, since it is larger than the sum of its proper divisors (6272220110).

12544440214 is an equidigital number, since it uses as much as digits as its factorization.

12544440214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6272220109.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 12544440214 its reverse (41204444521), we get a palindrome (53748884735).

The spelling of 12544440214 in words is "twelve billion, five hundred forty-four million, four hundred forty thousand, two hundred fourteen".