442618585818 has 32 divisors (see below), whose sum is σ = 896008792896. Its totient is φ = 145744679808.

The previous prime is 442618585753. The next prime is 442618585823. The reversal of 442618585818 is 818585816244.

It is a super-2 number, since 2×442618585818² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4561980 + ... + 4657992.

It is an arithmetic number, because the mean of its divisors is an integer number (28000274778).

Almost surely, 2^442618585818 is an apocalyptic number.

442618585818 is an abundant number, since it is smaller than the sum of its proper divisors (453390207078).

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

442618585818 is a wasteful number, since it uses less digits than its factorization.

442618585818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105358.

The product of its digits is 19660800, while the sum is 60.

The spelling of 442618585818 in words is "four hundred forty-two billion, six hundred eighteen million, five hundred eighty-five thousand, eight hundred eighteen".