441856615866 has 8 divisors (see below), whose sum is σ = 883713231744. Its totient is φ = 147285538620.

The previous prime is 441856615847. The next prime is 441856615867. The reversal of 441856615866 is 668516658144.

It is a happy number.

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

441856615866 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (441856615867) 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, 36821384650 + ... + 36821384661.

It is an arithmetic number, because the mean of its divisors is an integer number (110464153968).

Almost surely, 2^441856615866 is an apocalyptic number.

441856615866 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.

441856615866 is a wasteful number, since it uses less digits than its factorization.

441856615866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73642769316.

The product of its digits is 33177600, while the sum is 60.

The spelling of 441856615866 in words is "four hundred forty-one billion, eight hundred fifty-six million, six hundred fifteen thousand, eight hundred sixty-six".