43550681344 has 27 divisors (see below), whose sum is σ = 86937908323. Its totient is φ = 21773671168.

The previous prime is 43550681287. The next prime is 43550681353. The reversal of 43550681344 is 44318605534.

The square root of 43550681344 is 208688.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43550681344.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3332487 + ... + 3345529.

Almost surely, 2^43550681344 is an apocalyptic number.

43550681344 is the 208688-th square number.

It is an amenable number.

43550681344 is a deficient number, since it is larger than the sum of its proper divisors (43387226979).

43550681344 is an frugal number, since it uses more digits than its factorization.

43550681344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26102 (or 13045 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 43550681344 in words is "forty-three billion, five hundred fifty million, six hundred eighty-one thousand, three hundred forty-four".