43443326613 has 4 divisors (see below), whose sum is σ = 57924435488. Its totient is φ = 28962217740.

The previous prime is 43443326609. The next prime is 43443326657. The reversal of 43443326613 is 31662334434.

43443326613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 43443326613 - 2² = 43443326609 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43443326683) 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, 7240554433 + ... + 7240554438.

It is an arithmetic number, because the mean of its divisors is an integer number (14481108872).

Almost surely, 2^43443326613 is an apocalyptic number.

It is an amenable number.

43443326613 is a deficient number, since it is larger than the sum of its proper divisors (14481108875).

43443326613 is a wasteful number, since it uses less digits than its factorization.

43443326613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14481108874.

The product of its digits is 373248, while the sum is 39.

The spelling of 43443326613 in words is "forty-three billion, four hundred forty-three million, three hundred twenty-six thousand, six hundred thirteen".