12444117627 has 4 divisors (see below), whose sum is σ = 16592156840. Its totient is φ = 8296078416.

The previous prime is 12444117607. The next prime is 12444117629. The reversal of 12444117627 is 72671144421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72671144421 = 3 ⋅24223714807.

It is not a de Polignac number, because 12444117627 - 2¹⁹ = 12443593339 is a prime.

It is a super-2 number, since 2×12444117627² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12444117629) 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, 2074019602 + ... + 2074019607.

It is an arithmetic number, because the mean of its divisors is an integer number (4148039210).

Almost surely, 2^12444117627 is an apocalyptic number.

12444117627 is a deficient number, since it is larger than the sum of its proper divisors (4148039213).

12444117627 is an equidigital number, since it uses as much as digits as its factorization.

12444117627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148039212.

The product of its digits is 75264, while the sum is 39.

The spelling of 12444117627 in words is "twelve billion, four hundred forty-four million, one hundred seventeen thousand, six hundred twenty-seven".