44138931012 has 36 divisors (see below), whose sum is σ = 121716447216. Its totient is φ = 13375433520.

The previous prime is 44138930999. The next prime is 44138931029. The reversal of 44138931012 is 21013983144.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55730578 + ... + 55731369.

Almost surely, 2^44138931012 is an apocalyptic number.

It is an amenable number.

44138931012 is an abundant number, since it is smaller than the sum of its proper divisors (77577516204).

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

44138931012 is a wasteful number, since it uses less digits than its factorization.

44138931012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111461968 (or 111461963 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 44138931012 in words is "forty-four billion, one hundred thirty-eight million, nine hundred thirty-one thousand, twelve".