43330969728 has 72 divisors (see below), whose sum is σ = 124709713245. Its totient is φ = 14441301504.

The previous prime is 43330969723. The next prime is 43330969729. The reversal of 43330969728 is 82796903334.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

43330969728 is a `hidden beast` number, since 433 + 30 + 96 + 97 + 2 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29257418304 + 14073551424 = 171048^2 + 118632^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=147192.

It is not an unprimeable number, because it can be changed into a prime (43330969723) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7062150 + ... + 7068282.

Almost surely, 2^43330969728 is an apocalyptic number.

43330969728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

43330969728 is an abundant number, since it is smaller than the sum of its proper divisors (81378743517).

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

43330969728 is an frugal number, since it uses more digits than its factorization.

43330969728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12286 (or 6138 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 43330969728 in words is "forty-three billion, three hundred thirty million, nine hundred sixty-nine thousand, seven hundred twenty-eight".