442636641142023 has 16 divisors (see below), whose sum is σ = 618968386308096. Its totient is φ = 280828249326240.

The previous prime is 442636641142021. The next prime is 442636641142039. The reversal of 442636641142023 is 320241146636244.

It is not a de Polignac number, because 442636641142023 - 2¹ = 442636641142021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442636641142021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 16281772663 + ... + 16281799848.

It is an arithmetic number, because the mean of its divisors is an integer number (38685524144256).

Almost surely, 2^{442636641142023} is an apocalyptic number.

442636641142023 is a deficient number, since it is larger than the sum of its proper divisors (176331745166073).

442636641142023 is a wasteful number, since it uses less digits than its factorization.

442636641142023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32563572734.

The product of its (nonzero) digits is 3981312, while the sum is 48.

Adding to 442636641142023 its reverse (320241146636244), we get a palindrome (762877787778267).

The spelling of 442636641142023 in words is "four hundred forty-two trillion, six hundred thirty-six billion, six hundred forty-one million, one hundred forty-two thousand, twenty-three".