442644337775005 has 8 divisors (see below), whose sum is σ = 534556474154712. Its totient is φ = 351859957670208.

The previous prime is 442644337774999. The next prime is 442644337775033. The reversal of 442644337775005 is 500577733446244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 76717050415929 + 365927287359076 = 8758827^2 + 19129226^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442644337775005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281939067862 + ... + 281939069431.

It is an arithmetic number, because the mean of its divisors is an integer number (66819559269339).

Almost surely, 2^{442644337775005} is an apocalyptic number.

It is an amenable number.

442644337775005 is a deficient number, since it is larger than the sum of its proper divisors (91912136379707).

442644337775005 is a wasteful number, since it uses less digits than its factorization.

442644337775005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563878137455.

The product of its (nonzero) digits is 237081600, while the sum is 61.

The spelling of 442644337775005 in words is "four hundred forty-two trillion, six hundred forty-four billion, three hundred thirty-seven million, seven hundred seventy-five thousand, five".