442551544130052 has 144 divisors (see below), whose sum is σ = 1353954722440320. Its totient is φ = 118981927904256.

The previous prime is 442551544130041. The next prime is 442551544130081. The reversal of 442551544130052 is 250031445155244.

442551544130052 is a `hidden beast` number, since 4 + 4 + 2 + 5 + 51 + 544 + 1 + 3 + 0 + 0 + 52 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11462898 + ... + 31882614.

It is an arithmetic number, because the mean of its divisors is an integer number (9402463350280).

Almost surely, 2^{442551544130052} is an apocalyptic number.

442551544130052 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442551544130052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676977361220160).

442551544130052 is an abundant number, since it is smaller than the sum of its proper divisors (911403178310268).

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

442551544130052 is a wasteful number, since it uses less digits than its factorization.

442551544130052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20424810 (or 20424805 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 45.

Adding to 442551544130052 its reverse (250031445155244), we get a palindrome (692582989285296).

The spelling of 442551544130052 in words is "four hundred forty-two trillion, five hundred fifty-one billion, five hundred forty-four million, one hundred thirty thousand, fifty-two".