44115729912 has 96 divisors (see below), whose sum is σ = 126913625280. Its totient is φ = 13795891200.

The previous prime is 44115729893. The next prime is 44115729923. The reversal of 44115729912 is 21992751144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325537 + ... + 440687.

It is an arithmetic number, because the mean of its divisors is an integer number (1322016930).

Almost surely, 2^44115729912 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 44115729912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63456812640).

44115729912 is an abundant number, since it is smaller than the sum of its proper divisors (82797895368).

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

44115729912 is a wasteful number, since it uses less digits than its factorization.

44115729912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115493 (or 115486 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The spelling of 44115729912 in words is "forty-four billion, one hundred fifteen million, seven hundred twenty-nine thousand, nine hundred twelve".