444468787369 has 4 divisors (see below), whose sum is σ = 444698726596. Its totient is φ = 444238848144.

The previous prime is 444468787313. The next prime is 444468787393. The reversal of 444468787369 is 963787864444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 291205933225 + 153262854144 = 539635^2 + 391488^2 .

It is a cyclic number.

It is not a de Polignac number, because 444468787369 - 2¹³ = 444468779177 is a prime.

It is a super-2 number, since 2×444468787369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444468787298 and 444468787307.

It is not an unprimeable number, because it can be changed into a prime (444468187369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114966714 + ... + 114970579.

It is an arithmetic number, because the mean of its divisors is an integer number (111174681649).

Almost surely, 2^444468787369 is an apocalyptic number.

It is an amenable number.

444468787369 is a deficient number, since it is larger than the sum of its proper divisors (229939227).

444468787369 is a wasteful number, since it uses less digits than its factorization.

444468787369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229939226.

The product of its digits is 780337152, while the sum is 70.

The spelling of 444468787369 in words is "four hundred forty-four billion, four hundred sixty-eight million, seven hundred eighty-seven thousand, three hundred sixty-nine".