442450568311 has 4 divisors (see below), whose sum is σ = 442864461400. Its totient is φ = 442036675224.

The previous prime is 442450568309. The next prime is 442450568317. The reversal of 442450568311 is 113865054244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442450568311 - 2¹ = 442450568309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442450568317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206944941 + ... + 206947078.

It is an arithmetic number, because the mean of its divisors is an integer number (110716115350).

Almost surely, 2^442450568311 is an apocalyptic number.

442450568311 is a deficient number, since it is larger than the sum of its proper divisors (413893089).

442450568311 is a wasteful number, since it uses less digits than its factorization.

442450568311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413893088.

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 442450568311 in words is "four hundred forty-two billion, four hundred fifty million, five hundred sixty-eight thousand, three hundred eleven".