444324421535505 has 32 divisors (see below), whose sum is σ = 812491091241984. Its totient is φ = 203116698307776.

The previous prime is 444324421535483. The next prime is 444324421535507. The reversal of 444324421535505 is 505535124423444.

It is not a de Polignac number, because 444324421535505 - 2²³ = 444324413146897 is a prime.

It is a super-2 number, since 2×444324421535505² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (444324421535507) 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 in 31 ways as a sum of consecutive naturals, for example, 24575127 + ... + 38633996.

It is an arithmetic number, because the mean of its divisors is an integer number (25390346601312).

Almost surely, 2^{444324421535505} is an apocalyptic number.

It is an amenable number.

444324421535505 is a deficient number, since it is larger than the sum of its proper divisors (368166669706479).

444324421535505 is a wasteful number, since it uses less digits than its factorization.

444324421535505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63276085.

The product of its (nonzero) digits is 23040000, while the sum is 51.

Adding to 444324421535505 its reverse (505535124423444), we get a palindrome (949859545958949).

The spelling of 444324421535505 in words is "four hundred forty-four trillion, three hundred twenty-four billion, four hundred twenty-one million, five hundred thirty-five thousand, five hundred five".