43239315361 has 4 divisors (see below), whose sum is σ = 47170162224. Its totient is φ = 39308468500.

The previous prime is 43239315337. The next prime is 43239315377. The reversal of 43239315361 is 16351393234.

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 not a de Polignac number, because 43239315361 - 2⁹ = 43239314849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43239315331) 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, 1965423415 + ... + 1965423436.

It is an arithmetic number, because the mean of its divisors is an integer number (11792540556).

Almost surely, 2^43239315361 is an apocalyptic number.

It is an amenable number.

43239315361 is a deficient number, since it is larger than the sum of its proper divisors (3930846863).

43239315361 is a wasteful number, since it uses less digits than its factorization.

43239315361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930846862.

The product of its digits is 174960, while the sum is 40.

The spelling of 43239315361 in words is "forty-three billion, two hundred thirty-nine million, three hundred fifteen thousand, three hundred sixty-one".