44894744064 has 120 divisors (see below), whose sum is σ = 129858883440. Its totient is φ = 14931468288.

The previous prime is 44894744053. The next prime is 44894744077. The reversal of 44894744064 is 46044749844.

It is a happy number.

44894744064 is a `hidden beast` number, since 448 + 94 + 74 + 40 + 6 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 44894744064.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2095197 + ... + 2116515.

It is an arithmetic number, because the mean of its divisors is an integer number (1082157362).

Almost surely, 2^44894744064 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 44894744064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64929441720).

44894744064 is an abundant number, since it is smaller than the sum of its proper divisors (84964139376).

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

44894744064 is a wasteful number, since it uses less digits than its factorization.

44894744064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21800 (or 21781 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 54.

The spelling of 44894744064 in words is "forty-four billion, eight hundred ninety-four million, seven hundred forty-four thousand, sixty-four".