442002434311553 has 4 divisors (see below), whose sum is σ = 442004438542080. Its totient is φ = 442000430081028.

The previous prime is 442002434311511. The next prime is 442002434311589. The reversal of 442002434311553 is 355113434200244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442002434311553 - 2³² = 441998139344257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442002434311553.

It is not an unprimeable number, because it can be changed into a prime (442002434511553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001784425 + ... + 1002225542.

It is an arithmetic number, because the mean of its divisors is an integer number (110501109635520).

Almost surely, 2^{442002434311553} is an apocalyptic number.

It is an amenable number.

442002434311553 is a deficient number, since it is larger than the sum of its proper divisors (2004230527).

442002434311553 is a wasteful number, since it uses less digits than its factorization.

442002434311553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004230526.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 442002434311553 its reverse (355113434200244), we get a palindrome (797115868511797).

The spelling of 442002434311553 in words is "four hundred forty-two trillion, two billion, four hundred thirty-four million, three hundred eleven thousand, five hundred fifty-three".