442246101642243 has 8 divisors (see below), whose sum is σ = 655179409840400. Its totient is φ = 294830734428144.

The previous prime is 442246101642209. The next prime is 442246101642263. The reversal of 442246101642243 is 342246101642244.

442246101642243 is a `hidden beast` number, since 4 + 4 + 2 + 2 + 4 + 610 + 1 + 6 + 4 + 2 + 24 + 3 = 666.

It is not a de Polignac number, because 442246101642243 - 2³² = 442241806674947 is a prime.

It is a super-2 number, since 2×442246101642243² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442246101642263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8189742622978 + ... + 8189742623031.

It is an arithmetic number, because the mean of its divisors is an integer number (81897426230050).

Almost surely, 2^{442246101642243} is an apocalyptic number.

442246101642243 is a deficient number, since it is larger than the sum of its proper divisors (212933308198157).

442246101642243 is a wasteful number, since it uses less digits than its factorization.

442246101642243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16379485246018 (or 16379485246012 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 45.

Subtracting from 442246101642243 its reverse (342246101642244), we obtain a palindrome (99999999999999).

The spelling of 442246101642243 in words is "four hundred forty-two trillion, two hundred forty-six billion, one hundred one million, six hundred forty-two thousand, two hundred forty-three".