43503680345 has 8 divisors (see below), whose sum is σ = 52240855176. Its totient is φ = 34778651776.

The previous prime is 43503680329. The next prime is 43503680347. The reversal of 43503680345 is 54308630534.

It can be written as a sum of positive squares in 4 ways, for example, as 23427057481 + 20076622864 = 153059^2 + 141692^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43503680345 - 2⁴ = 43503680329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43503680347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3028682 + ... + 3043011.

It is an arithmetic number, because the mean of its divisors is an integer number (6530106897).

Almost surely, 2^43503680345 is an apocalyptic number.

It is an amenable number.

43503680345 is a deficient number, since it is larger than the sum of its proper divisors (8737174831).

43503680345 is a wasteful number, since it uses less digits than its factorization.

43503680345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6073131.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 43503680345 in words is "forty-three billion, five hundred three million, six hundred eighty thousand, three hundred forty-five".