444311324042421 has 16 divisors (see below), whose sum is σ = 646348055100480. Its totient is φ = 269247491032320.

The previous prime is 444311324042401. The next prime is 444311324042423. The reversal of 444311324042421 is 124240423113444.

It is a happy number.

It is not a de Polignac number, because 444311324042421 - 2³¹ = 444309176558773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444311324042421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444311324042423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 802201380 + ... + 802755053.

It is an arithmetic number, because the mean of its divisors is an integer number (40396753443780).

Almost surely, 2^{444311324042421} is an apocalyptic number.

It is an amenable number.

444311324042421 is a deficient number, since it is larger than the sum of its proper divisors (202036731058059).

444311324042421 is a wasteful number, since it uses less digits than its factorization.

444311324042421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604964836.

The product of its (nonzero) digits is 294912, while the sum is 39.

Adding to 444311324042421 its reverse (124240423113444), we get a palindrome (568551747155865).

The spelling of 444311324042421 in words is "four hundred forty-four trillion, three hundred eleven billion, three hundred twenty-four million, forty-two thousand, four hundred twenty-one".