444342122213 has 4 divisors (see below), whose sum is σ = 484736860608. Its totient is φ = 403947383820.

The previous prime is 444342122173. The next prime is 444342122233. The reversal of 444342122213 is 312221243444.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 444342122213 - 2⁶ = 444342122149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444342122213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444342122233) 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, 20197369181 + ... + 20197369202.

It is an arithmetic number, because the mean of its divisors is an integer number (121184215152).

Almost surely, 2^444342122213 is an apocalyptic number.

It is an amenable number.

444342122213 is a deficient number, since it is larger than the sum of its proper divisors (40394738395).

444342122213 is a wasteful number, since it uses less digits than its factorization.

444342122213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40394738394.

The product of its digits is 36864, while the sum is 32.

Adding to 444342122213 its reverse (312221243444), we get a palindrome (756563365657).

The spelling of 444342122213 in words is "four hundred forty-four billion, three hundred forty-two million, one hundred twenty-two thousand, two hundred thirteen".