44089640064 has 256 divisors, whose sum is σ = 136299744000. Its totient is φ = 14187156480.

The previous prime is 44089640057. The next prime is 44089640113. The reversal of 44089640064 is 46004698044.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8115429 + ... + 8120859.

It is an arithmetic number, because the mean of its divisors is an integer number (532420875).

Almost surely, 2^44089640064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44089640064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68149872000).

44089640064 is an abundant number, since it is smaller than the sum of its proper divisors (92210103936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44089640064 is an frugal number, since it uses more digits than its factorization.

44089640064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495 (or 5465 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 44089640064 in words is "forty-four billion, eighty-nine million, six hundred forty thousand, sixty-four".