441813817223887 has 12 divisors (see below), whose sum is σ = 443841995780976. Its totient is φ = 439791032278080.

The previous prime is 441813817223843. The next prime is 441813817223917. The reversal of 441813817223887 is 788322718318144.

It is not a de Polignac number, because 441813817223887 - 2¹⁹ = 441813816699599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441813817223827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127414462 + ... + 130836052.

It is an arithmetic number, because the mean of its divisors is an integer number (36986832981748).

Almost surely, 2^{441813817223887} is an apocalyptic number.

441813817223887 is a deficient number, since it is larger than the sum of its proper divisors (2028178557089).

441813817223887 is an frugal number, since it uses more digits than its factorization.

441813817223887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423166 (or 3422547 counting only the distinct ones).

The product of its digits is 115605504, while the sum is 67.

The spelling of 441813817223887 in words is "four hundred forty-one trillion, eight hundred thirteen billion, eight hundred seventeen million, two hundred twenty-three thousand, eight hundred eighty-seven".