444552520000 has 70 divisors (see below), whose sum is σ = 1102345869218. Its totient is φ = 177820992000.

The previous prime is 444552519973. The next prime is 444552520003. The reversal of 444552520000 is 25255444.

It can be written as a sum of positive squares in 5 ways, for example, as 316914954304 + 127637565696 = 562952^2 + 357264^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444552520003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5516907 + ... + 5596906.

Almost surely, 2^444552520000 is an apocalyptic number.

444552520000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444552520000 is an abundant number, since it is smaller than the sum of its proper divisors (657793349218).

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

444552520000 is an equidigital number, since it uses as much as digits as its factorization.

444552520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11113845 (or 11113820 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

Adding to 444552520000 its reverse (25255444), we get a palindrome (444577775444).

The spelling of 444552520000 in words is "four hundred forty-four billion, five hundred fifty-two million, five hundred twenty thousand".