44122312138 has 8 divisors (see below), whose sum is σ = 66190026240. Its totient is φ = 22058970060.

The previous prime is 44122312111. The next prime is 44122312139. The reversal of 44122312138 is 83121322144.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (44122312139) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1067658 + ... + 1108213.

It is an arithmetic number, because the mean of its divisors is an integer number (8273753280).

Almost surely, 2^44122312138 is an apocalyptic number.

44122312138 is a deficient number, since it is larger than the sum of its proper divisors (22067714102).

44122312138 is a wasteful number, since it uses less digits than its factorization.

44122312138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186012.

The product of its digits is 9216, while the sum is 31.

The spelling of 44122312138 in words is "forty-four billion, one hundred twenty-two million, three hundred twelve thousand, one hundred thirty-eight".