444485752589906 has 8 divisors (see below), whose sum is σ = 666728849483004. Its totient is φ = 222242802762240.

The previous prime is 444485752589903. The next prime is 444485752589951. The reversal of 444485752589906 is 609985257584444.

It can be written as a sum of positive squares in 2 ways, for example, as 431655680505625 + 12830072084281 = 20776325^2 + 3581909^2 .

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

It is a super-2 number, since 2×444485752589906² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (444485752589903) 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, 28871375 + ... + 41503346.

Almost surely, 2^{444485752589906} is an apocalyptic number.

444485752589906 is a deficient number, since it is larger than the sum of its proper divisors (222243096893098).

444485752589906 is a wasteful number, since it uses less digits than its factorization.

444485752589906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73532716.

The product of its (nonzero) digits is 13934592000, while the sum is 80.

The spelling of 444485752589906 in words is "four hundred forty-four trillion, four hundred eighty-five billion, seven hundred fifty-two million, five hundred eighty-nine thousand, nine hundred six".