44864494064 has 120 divisors (see below), whose sum is σ = 98528610432. Its totient is φ = 19652705280.

The previous prime is 44864494043. The next prime is 44864494099. The reversal of 44864494064 is 46049446844.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a junction number, because it is equal to n+sod(n) for n = 44864493997 and 44864494015.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 18111194 + ... + 18113670.

Almost surely, 2^44864494064 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 44864494064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49264305216).

44864494064 is an abundant number, since it is smaller than the sum of its proper divisors (53664116368).

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

44864494064 is a wasteful number, since it uses less digits than its factorization.

44864494064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635 (or 2576 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 53.

The spelling of 44864494064 in words is "forty-four billion, eight hundred sixty-four million, four hundred ninety-four thousand, sixty-four".