731229840943 has 4 divisors (see below), whose sum is σ = 835691246800. Its totient is φ = 626768435088.

The previous prime is 731229840937. The next prime is 731229840953. The reversal of 731229840943 is 349048922137.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 731229840943 - 2⁵ = 731229840911 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 (731229840953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52230702918 + ... + 52230702931.

It is an arithmetic number, because the mean of its divisors is an integer number (208922811700).

Almost surely, 2^731229840943 is an apocalyptic number.

731229840943 is a deficient number, since it is larger than the sum of its proper divisors (104461405857).

731229840943 is a wasteful number, since it uses less digits than its factorization.

731229840943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104461405856.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 731229840943 in words is "seven hundred thirty-one billion, two hundred twenty-nine million, eight hundred forty thousand, nine hundred forty-three".