44212644138 has 32 divisors (see below), whose sum is σ = 95237275392. Its totient is φ = 13602456000.

The previous prime is 44212644131. The next prime is 44212644139. The reversal of 44212644138 is 83144621244.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 44212644096 and 44212644105.

It is not an unprimeable number, because it can be changed into a prime (44212644131) 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 15 ways as a sum of consecutive naturals, for example, 898063 + ... + 946013.

It is an arithmetic number, because the mean of its divisors is an integer number (2976164856).

Almost surely, 2^44212644138 is an apocalyptic number.

44212644138 is an abundant number, since it is smaller than the sum of its proper divisors (51024631254).

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

44212644138 is a wasteful number, since it uses less digits than its factorization.

44212644138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59790.

The product of its digits is 147456, while the sum is 39.

The spelling of 44212644138 in words is "forty-four billion, two hundred twelve million, six hundred forty-four thousand, one hundred thirty-eight".