43305687072 has 216 divisors, whose sum is σ = 134795855376. Its totient is φ = 13674593664.

The previous prime is 43305687071. The next prime is 43305687107. The reversal of 43305687072 is 27078650334.

It is a tau number, because it is divible by the number of its divisors (216).

It is not an unprimeable number, because it can be changed into a prime (43305687071) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2799423 + ... + 2814849.

It is an arithmetic number, because the mean of its divisors is an integer number (624054886).

Almost surely, 2^43305687072 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 43305687072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67397927688).

43305687072 is an abundant number, since it is smaller than the sum of its proper divisors (91490168304).

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

43305687072 is a wasteful number, since it uses less digits than its factorization.

43305687072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15490 (or 15451 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 43305687072 in words is "forty-three billion, three hundred five million, six hundred eighty-seven thousand, seventy-two".