442520234873 has 2 divisors, whose sum is σ = 442520234874. Its totient is φ = 442520234872.

The previous prime is 442520234851. The next prime is 442520234881. The reversal of 442520234873 is 378432025244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 441151012864 + 1369222009 = 664192^2 + 37003^2 .

It is a cyclic number.

It is not a de Polignac number, because 442520234873 - 2¹⁰ = 442520233849 is a prime.

It is a super-2 number, since 2×442520234873² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442520239873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221260117436 + 221260117437.

It is an arithmetic number, because the mean of its divisors is an integer number (221260117437).

Almost surely, 2^442520234873 is an apocalyptic number.

It is an amenable number.

442520234873 is a deficient number, since it is larger than the sum of its proper divisors (1).

442520234873 is an equidigital number, since it uses as much as digits as its factorization.

442520234873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 44.

The spelling of 442520234873 in words is "four hundred forty-two billion, five hundred twenty million, two hundred thirty-four thousand, eight hundred seventy-three".