4404444444065 has 4 divisors (see below), whose sum is σ = 5285333332884. Its totient is φ = 3523555555248.

The previous prime is 4404444444031. The next prime is 4404444444107. The reversal of 4404444444065 is 5604444444044.

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 3338922961984 + 1065521482081 = 1827272^2 + 1032241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4404444444065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440444444402 + ... + 440444444411.

It is an arithmetic number, because the mean of its divisors is an integer number (1321333333221).

Almost surely, 2^{4404444444065} is an apocalyptic number.

It is an amenable number.

4404444444065 is a deficient number, since it is larger than the sum of its proper divisors (880888888819).

4404444444065 is an equidigital number, since it uses as much as digits as its factorization.

4404444444065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880888888818.

The product of its (nonzero) digits is 7864320, while the sum is 47.

The spelling of 4404444444065 in words is "four trillion, four hundred four billion, four hundred forty-four million, four hundred forty-four thousand, sixty-five".