442206406667 has 4 divisors (see below), whose sum is σ = 442368330456. Its totient is φ = 442044482880.

The previous prime is 442206406651. The next prime is 442206406669. The reversal of 442206406667 is 766604602244.

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 442206406667 - 2⁴ = 442206406651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442206406669) 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 in 3 ways as a sum of consecutive naturals, for example, 80957798 + ... + 80963259.

It is an arithmetic number, because the mean of its divisors is an integer number (110592082614).

Almost surely, 2^442206406667 is an apocalyptic number.

442206406667 is a deficient number, since it is larger than the sum of its proper divisors (161923789).

442206406667 is a wasteful number, since it uses less digits than its factorization.

442206406667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161923788.

The product of its (nonzero) digits is 2322432, while the sum is 47.

The spelling of 442206406667 in words is "four hundred forty-two billion, two hundred six million, four hundred six thousand, six hundred sixty-seven".