44893217664 has 192 divisors, whose sum is σ = 131443462800. Its totient is φ = 14704926720.

The previous prime is 44893217647. The next prime is 44893217701. The reversal of 44893217664 is 46671239844.

44893217664 is a `hidden beast` number, since 4 + 489 + 32 + 1 + 76 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 44893217664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17736079 + ... + 17738609.

Almost surely, 2^44893217664 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 44893217664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65721731400).

44893217664 is an abundant number, since it is smaller than the sum of its proper divisors (86550245136).

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

44893217664 is a wasteful number, since it uses less digits than its factorization.

44893217664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813 (or 2798 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The spelling of 44893217664 in words is "forty-four billion, eight hundred ninety-three million, two hundred seventeen thousand, six hundred sixty-four".