442818805518 has 24 divisors (see below), whose sum is σ = 1009937627400. Its totient is φ = 139837517424.

The previous prime is 442818805477. The next prime is 442818805523. The reversal of 442818805518 is 815508818244.

442818805518 is a `hidden beast` number, since 4 + 4 + 2 + 8 + 1 + 8 + 80 + 551 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 647395573 + ... + 647396256.

It is an arithmetic number, because the mean of its divisors is an integer number (42080734475).

Almost surely, 2^442818805518 is an apocalyptic number.

442818805518 is an abundant number, since it is smaller than the sum of its proper divisors (567118821882).

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

442818805518 is a wasteful number, since it uses less digits than its factorization.

442818805518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294791856 (or 1294791853 counting only the distinct ones).

The product of its (nonzero) digits is 3276800, while the sum is 54.

The spelling of 442818805518 in words is "four hundred forty-two billion, eight hundred eighteen million, eight hundred five thousand, five hundred eighteen".