115539443712 has 672 divisors, whose sum is σ = 434865231360. Its totient is φ = 29444014080.

The previous prime is 115539443711. The next prime is 115539443717. The reversal of 115539443712 is 217344935511.

115539443712 is a `hidden beast` number, since 1 + 1 + 5 + 539 + 4 + 43 + 71 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

Its product of digits (453600) is a multiple of the sum of its prime factors (120).

It is not an unprimeable number, because it can be changed into a prime (115539443711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2179989478 + ... + 2179989530.

It is an arithmetic number, because the mean of its divisors is an integer number (647120880).

Almost surely, 2^115539443712 is an apocalyptic number.

115539443712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115539443712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217432615680).

115539443712 is an abundant number, since it is smaller than the sum of its proper divisors (319325787648).

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

115539443712 is an frugal number, since it uses more digits than its factorization.

115539443712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 76 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The spelling of 115539443712 in words is "one hundred fifteen billion, five hundred thirty-nine million, four hundred forty-three thousand, seven hundred twelve".