43580785612 has 96 divisors (see below), whose sum is σ = 96138627200. Its totient is φ = 17176561920.

The previous prime is 43580785609. The next prime is 43580785613. The reversal of 43580785612 is 21658708534.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (43580785613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4936162 + ... + 4944982.

Almost surely, 2^43580785612 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 43580785612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48069313600).

43580785612 is an abundant number, since it is smaller than the sum of its proper divisors (52557841588).

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

43580785612 is a wasteful number, since it uses less digits than its factorization.

43580785612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9136 (or 9120 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 43580785612 in words is "forty-three billion, five hundred eighty million, seven hundred eighty-five thousand, six hundred twelve".