44355729664 has 27 divisors (see below), whose sum is σ = 88544921563. Its totient is φ = 22176179968.

The previous prime is 44355729637. The next prime is 44355729667. The reversal of 44355729664 is 46692755344.

It is a happy number.

The square root of 44355729664 is 210608.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44355729667) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3363147 + ... + 3376309.

Almost surely, 2^44355729664 is an apocalyptic number.

44355729664 is the 210608-th square number.

It is an amenable number.

44355729664 is a deficient number, since it is larger than the sum of its proper divisors (44189191899).

44355729664 is an frugal number, since it uses more digits than its factorization.

44355729664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26342 (or 13165 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 55.

The spelling of 44355729664 in words is "forty-four billion, three hundred fifty-five million, seven hundred twenty-nine thousand, six hundred sixty-four".