43505260243 has 4 divisors (see below), whose sum is σ = 43505743480. Its totient is φ = 43504777008.

The previous prime is 43505260181. The next prime is 43505260247. The reversal of 43505260243 is 34206250534.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43505260243 is a prime.

It is a super-2 number, since 2×43505260243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43505260199 and 43505260208.

It is not an unprimeable number, because it can be changed into a prime (43505260247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62130 + ... + 301447.

It is an arithmetic number, because the mean of its divisors is an integer number (10876435870).

Almost surely, 2^43505260243 is an apocalyptic number.

43505260243 is a deficient number, since it is larger than the sum of its proper divisors (483237).

43505260243 is a wasteful number, since it uses less digits than its factorization.

43505260243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483236.

The product of its (nonzero) digits is 86400, while the sum is 34.

The spelling of 43505260243 in words is "forty-three billion, five hundred five million, two hundred sixty thousand, two hundred forty-three".