44409768145 has 8 divisors (see below), whose sum is σ = 53370443304. Its totient is φ = 35475333504.

The previous prime is 44409768133. The next prime is 44409768149. The reversal of 44409768145 is 54186790444.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25833168529 + 18576599616 = 160727^2 + 136296^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 44409768145 - 2⁵ = 44409768113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44409768092 and 44409768101.

It is not an unprimeable number, because it can be changed into a prime (44409768149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6556404 + ... + 6563173.

It is an arithmetic number, because the mean of its divisors is an integer number (6671305413).

Almost surely, 2^44409768145 is an apocalyptic number.

It is an amenable number.

44409768145 is a deficient number, since it is larger than the sum of its proper divisors (8960675159).

44409768145 is a wasteful number, since it uses less digits than its factorization.

44409768145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13120259.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 44409768145 in words is "forty-four billion, four hundred nine million, seven hundred sixty-eight thousand, one hundred forty-five".