43683683640 has 64 divisors (see below), whose sum is σ = 131171564160. Its totient is φ = 11638270080.

The previous prime is 43683683581. The next prime is 43683683647. The reversal of 43683683640 is 4638638634.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43683683647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35914 + ... + 297753.

It is an arithmetic number, because the mean of its divisors is an integer number (2049555690).

Almost surely, 2^43683683640 is an apocalyptic number.

43683683640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43683683640 is an abundant number, since it is smaller than the sum of its proper divisors (87487880520).

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

43683683640 is a wasteful number, since it uses less digits than its factorization.

43683683640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334772 (or 334768 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 51.

The spelling of 43683683640 in words is "forty-three billion, six hundred eighty-three million, six hundred eighty-three thousand, six hundred forty".