44439609657 has 16 divisors (see below), whose sum is σ = 62334936000. Its totient is φ = 28119975744.

The previous prime is 44439609619. The next prime is 44439609659. The reversal of 44439609657 is 75690693444.

It is a happy number.

It is not a de Polignac number, because 44439609657 - 2¹¹ = 44439607609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44439609597 and 44439609606.

It is not an unprimeable number, because it can be changed into a prime (44439609659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4323682 + ... + 4333947.

It is an arithmetic number, because the mean of its divisors is an integer number (3895933500).

Almost surely, 2^44439609657 is an apocalyptic number.

It is an amenable number.

44439609657 is a deficient number, since it is larger than the sum of its proper divisors (17895326343).

44439609657 is a wasteful number, since it uses less digits than its factorization.

44439609657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8657720.

The product of its (nonzero) digits is 19595520, while the sum is 57.

The spelling of 44439609657 in words is "forty-four billion, four hundred thirty-nine million, six hundred nine thousand, six hundred fifty-seven".