444213312398 has 4 divisors (see below), whose sum is σ = 666319968600. Its totient is φ = 222106656198.

The previous prime is 444213312397. The next prime is 444213312401. The reversal of 444213312398 is 893213312444.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444213312391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111053328098 + ... + 111053328101.

It is an arithmetic number, because the mean of its divisors is an integer number (166579992150).

Almost surely, 2^444213312398 is an apocalyptic number.

444213312398 is a deficient number, since it is larger than the sum of its proper divisors (222106656202).

444213312398 is a wasteful number, since it uses less digits than its factorization.

444213312398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222106656201.

The product of its digits is 497664, while the sum is 44.

The spelling of 444213312398 in words is "four hundred forty-four billion, two hundred thirteen million, three hundred twelve thousand, three hundred ninety-eight".