444024344130321 has 4 divisors (see below), whose sum is σ = 592032458840432. Its totient is φ = 296016229420212.

The previous prime is 444024344130247. The next prime is 444024344130337. The reversal of 444024344130321 is 123031443420444.

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 de Polignac number, because none of the positive numbers 2^k-444024344130321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444024344130321.

It is not an unprimeable number, because it can be changed into a prime (444024344130361) 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, 74004057355051 + ... + 74004057355056.

It is an arithmetic number, because the mean of its divisors is an integer number (148008114710108).

Almost surely, 2^{444024344130321} is an apocalyptic number.

It is an amenable number.

444024344130321 is a deficient number, since it is larger than the sum of its proper divisors (148008114710111).

444024344130321 is a wasteful number, since it uses less digits than its factorization.

444024344130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148008114710110.

The product of its (nonzero) digits is 442368, while the sum is 39.

Adding to 444024344130321 its reverse (123031443420444), we get a palindrome (567055787550765).

The spelling of 444024344130321 in words is "four hundred forty-four trillion, twenty-four billion, three hundred forty-four million, one hundred thirty thousand, three hundred twenty-one".