44189705138 has 8 divisors (see below), whose sum is σ = 67083167088. Its totient is φ = 21828649444.

The previous prime is 44189705111. The next prime is 44189705177. The reversal of 44189705138 is 83150798144.

It is a happy number.

44189705138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133101356 + ... + 133101687.

It is an arithmetic number, because the mean of its divisors is an integer number (8385395886).

Almost surely, 2^44189705138 is an apocalyptic number.

44189705138 is a deficient number, since it is larger than the sum of its proper divisors (22893461950).

44189705138 is a wasteful number, since it uses less digits than its factorization.

44189705138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266203128.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 44189705138 in words is "forty-four billion, one hundred eighty-nine million, seven hundred five thousand, one hundred thirty-eight".