444309428279 has 4 divisors (see below), whose sum is σ = 445098610776. Its totient is φ = 443520245784.

The previous prime is 444309428261. The next prime is 444309428287. The reversal of 444309428279 is 972824903444.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 444309428279 - 2¹⁶ = 444309362743 is a prime.

It is a super-2 number, since 2×444309428279² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444309428249) 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, 394590404 + ... + 394591529.

It is an arithmetic number, because the mean of its divisors is an integer number (111274652694).

Almost surely, 2^444309428279 is an apocalyptic number.

444309428279 is a deficient number, since it is larger than the sum of its proper divisors (789182497).

444309428279 is an equidigital number, since it uses as much as digits as its factorization.

444309428279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789182496.

The product of its (nonzero) digits is 13934592, while the sum is 56.

The spelling of 444309428279 in words is "four hundred forty-four billion, three hundred nine million, four hundred twenty-eight thousand, two hundred seventy-nine".