442544487618 has 8 divisors (see below), whose sum is σ = 885088975248. Its totient is φ = 147514829204.

The previous prime is 442544487613. The next prime is 442544487703. The reversal of 442544487618 is 816784445244.

It is a sphenic number, since it is the product of 3 distinct primes.

442544487618 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (442544487613) 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, 36878707296 + ... + 36878707307.

It is an arithmetic number, because the mean of its divisors is an integer number (110636121906).

Almost surely, 2^442544487618 is an apocalyptic number.

442544487618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442544487618 is a wasteful number, since it uses less digits than its factorization.

442544487618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73757414608.

The product of its digits is 27525120, while the sum is 57.

The spelling of 442544487618 in words is "four hundred forty-two billion, five hundred forty-four million, four hundred eighty-seven thousand, six hundred eighteen".