442001112545 has 8 divisors (see below), whose sum is σ = 530519728680. Its totient is φ = 353521960960.

The previous prime is 442001112529. The next prime is 442001112589. The reversal of 442001112545 is 545211100244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 232435837456 + 209565275089 = 482116^2 + 457783^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442001112545 - 2⁴ = 442001112529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9841490 + ... + 9886299.

It is an arithmetic number, because the mean of its divisors is an integer number (66314966085).

Almost surely, 2^442001112545 is an apocalyptic number.

It is an amenable number.

442001112545 is a deficient number, since it is larger than the sum of its proper divisors (88518616135).

442001112545 is a wasteful number, since it uses less digits than its factorization.

442001112545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19732275.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 442001112545 its reverse (545211100244), we get a palindrome (987212212789).

The spelling of 442001112545 in words is "four hundred forty-two billion, one million, one hundred twelve thousand, five hundred forty-five".