444454368885 has 48 divisors (see below), whose sum is σ = 803978832384. Its totient is φ = 226709024256.

The previous prime is 444454368877. The next prime is 444454368887. The reversal of 444454368885 is 588863454444.

It is a happy number.

444454368885 is a `hidden beast` number, since 4 + 4 + 4 + 4 + 543 + 6 + 8 + 8 + 85 = 666.

It is not a de Polignac number, because 444454368885 - 2³ = 444454368877 is a prime.

It is a super-2 number, since 2×444454368885² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444454368887) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10860532 + ... + 10901378.

It is an arithmetic number, because the mean of its divisors is an integer number (16749559008).

Almost surely, 2^444454368885 is an apocalyptic number.

444454368885 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

444454368885 is a deficient number, since it is larger than the sum of its proper divisors (359524463499).

444454368885 is a wasteful number, since it uses less digits than its factorization.

444454368885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51394 (or 51391 counting only the distinct ones).

The product of its digits is 235929600, while the sum is 63.

The spelling of 444454368885 in words is "four hundred forty-four billion, four hundred fifty-four million, three hundred sixty-eight thousand, eight hundred eighty-five".