444680350603218 has 16 divisors (see below), whose sum is σ = 988178556896160. Its totient is φ = 148226783534388.

The previous prime is 444680350603169. The next prime is 444680350603273. The reversal of 444680350603218 is 812306053086444.

444680350603218 is a `hidden beast` number, since 4 + 4 + 4 + 6 + 8 + 0 + 3 + 5 + 0 + 603 + 21 + 8 = 666.

It is a super-2 number, since 2×444680350603218² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 8234821307467 = 444680350603218 / (4 + 4 + 4 + 6 + 8 + 0 + 3 + 5 + 0 + 6 + 0 + 3 + 2 + 1 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4117410653680 + ... + 4117410653787.

It is an arithmetic number, because the mean of its divisors is an integer number (61761159806010).

Almost surely, 2^{444680350603218} is an apocalyptic number.

444680350603218 is an abundant number, since it is smaller than the sum of its proper divisors (543498206292942).

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

444680350603218 is a wasteful number, since it uses less digits than its factorization.

444680350603218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8234821307478 (or 8234821307472 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 54.

The spelling of 444680350603218 in words is "four hundred forty-four trillion, six hundred eighty billion, three hundred fifty million, six hundred three thousand, two hundred eighteen".