43805382613 has 4 divisors (see below), whose sum is σ = 43812007360. Its totient is φ = 43798757868.

The previous prime is 43805382601. The next prime is 43805382641. The reversal of 43805382613 is 31628350834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43805382613 is a prime.

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 43805382613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43805382913) 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, 3302445 + ... + 3315682.

It is an arithmetic number, because the mean of its divisors is an integer number (10953001840).

Almost surely, 2^43805382613 is an apocalyptic number.

It is an amenable number.

43805382613 is a deficient number, since it is larger than the sum of its proper divisors (6624747).

43805382613 is an equidigital number, since it uses as much as digits as its factorization.

43805382613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624746.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 43805382613 in words is "forty-three billion, eight hundred five million, three hundred eighty-two thousand, six hundred thirteen".