444513535536 has 80 divisors (see below), whose sum is σ = 1313564212224. Its totient is φ = 126888617472.

The previous prime is 444513535519. The next prime is 444513535549. The reversal of 444513535536 is 635535315444.

It is a super-3 number, since 3×444513535536³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229101 + ... + 970316.

Almost surely, 2^444513535536 is an apocalyptic number.

It is an amenable number.

444513535536 is an abundant number, since it is smaller than the sum of its proper divisors (869050676688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444513535536 is a wasteful number, since it uses less digits than its factorization.

444513535536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200538 (or 1200532 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 48.

The spelling of 444513535536 in words is "four hundred forty-four billion, five hundred thirteen million, five hundred thirty-five thousand, five hundred thirty-six".