724427044423 has 4 divisors (see below), whose sum is σ = 742095996768. Its totient is φ = 706758092080.

The previous prime is 724427044403. The next prime is 724427044459. The reversal of 724427044423 is 324440724427.

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 724427044423 - 2⁹ = 724427043911 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 724427044423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724427044403) 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, 8834476111 + ... + 8834476192.

It is an arithmetic number, because the mean of its divisors is an integer number (185523999192).

Almost surely, 2^724427044423 is an apocalyptic number.

724427044423 is a deficient number, since it is larger than the sum of its proper divisors (17668952345).

724427044423 is a wasteful number, since it uses less digits than its factorization.

724427044423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17668952344.

The product of its (nonzero) digits is 1204224, while the sum is 43.

The spelling of 724427044423 in words is "seven hundred twenty-four billion, four hundred twenty-seven million, forty-four thousand, four hundred twenty-three".