442454101454243 has 16 divisors (see below), whose sum is σ = 447115438676256. Its totient is φ = 437794816757760.

The previous prime is 442454101454221. The next prime is 442454101454291. The reversal of 442454101454243 is 342454101454244.

It is a cyclic number.

It is not a de Polignac number, because 442454101454243 - 2⁴⁰ = 441354589826467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442454101454203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9694201703 + ... + 9694247343.

It is an arithmetic number, because the mean of its divisors is an integer number (27944714917266).

Almost surely, 2^{442454101454243} is an apocalyptic number.

442454101454243 is a deficient number, since it is larger than the sum of its proper divisors (4661337222013).

442454101454243 is a wasteful number, since it uses less digits than its factorization.

442454101454243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65894.

The product of its (nonzero) digits is 4915200, while the sum is 47.

Subtracting from 442454101454243 its reverse (342454101454244), we obtain a palindrome (99999999999999).

The spelling of 442454101454243 in words is "four hundred forty-two trillion, four hundred fifty-four billion, one hundred one million, four hundred fifty-four thousand, two hundred forty-three".