43685581603812 has 12 divisors (see below), whose sum is σ = 101933023742256. Its totient is φ = 14561860534600.

The previous prime is 43685581603777. The next prime is 43685581603819. The reversal of 43685581603812 is 21830618558634.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (43685581603819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1820232566814 + ... + 1820232566837.

It is an arithmetic number, because the mean of its divisors is an integer number (8494418645188).

Almost surely, 2^{43685581603812} is an apocalyptic number.

It is an amenable number.

43685581603812 is an abundant number, since it is smaller than the sum of its proper divisors (58247442138444).

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

43685581603812 is a wasteful number, since it uses less digits than its factorization.

43685581603812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640465133658 (or 3640465133656 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 60.

The spelling of 43685581603812 in words is "forty-three trillion, six hundred eighty-five billion, five hundred eighty-one million, six hundred three thousand, eight hundred twelve".