442168346361 has 16 divisors (see below), whose sum is σ = 673838827904. Its totient is φ = 252645692544.

The previous prime is 442168346317. The next prime is 442168346371. The reversal of 442168346361 is 163643861244.

It is not a de Polignac number, because 442168346361 - 2¹³ = 442168338169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442168346361.

It is not an unprimeable number, because it can be changed into a prime (442168346371) 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, 664666 + ... + 1151571.

It is an arithmetic number, because the mean of its divisors is an integer number (42114926744).

Almost surely, 2^442168346361 is an apocalyptic number.

It is an amenable number.

442168346361 is a deficient number, since it is larger than the sum of its proper divisors (231670481543).

442168346361 is a wasteful number, since it uses less digits than its factorization.

442168346361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827840.

The product of its digits is 1990656, while the sum is 48.

The spelling of 442168346361 in words is "four hundred forty-two billion, one hundred sixty-eight million, three hundred forty-six thousand, three hundred sixty-one".