5644428244465 has 8 divisors (see below), whose sum is σ = 6884351826408. Its totient is φ = 4441517306880.

The previous prime is 5644428244457. The next prime is 5644428244471.

5644428244465 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 194290534656 + 5450137709809 = 440784^2 + 2334553^2 .

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

It is not a de Polignac number, because 5644428244465 - 2³ = 5644428244457 is a prime.

It is a Duffinian number.

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, 9253160752 + ... + 9253161361.

It is an arithmetic number, because the mean of its divisors is an integer number (860543978301).

Almost surely, 2^{5644428244465} is an apocalyptic number.

It is an amenable number.

5644428244465 is a deficient number, since it is larger than the sum of its proper divisors (1239923581943).

5644428244465 is a wasteful number, since it uses less digits than its factorization.

5644428244465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18506322179.

The product of its digits is 117964800, while the sum is 58.

The spelling of 5644428244465 in words is "five trillion, six hundred forty-four billion, four hundred twenty-eight million, two hundred forty-four thousand, four hundred sixty-five".