21423424683743 has 8 divisors (see below), whose sum is σ = 22160727074640. Its totient is φ = 20694453393600.

The previous prime is 21423424683709. The next prime is 21423424683809. The reversal of 21423424683743 is 34738642432412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21423424683743 - 2⁸ = 21423424683487 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 (21423424683343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2082769958 + ... + 2082780243.

It is an arithmetic number, because the mean of its divisors is an integer number (2770090884330).

Almost surely, 2^{21423424683743} is an apocalyptic number.

21423424683743 is a deficient number, since it is larger than the sum of its proper divisors (737302390897).

21423424683743 is a wasteful number, since it uses less digits than its factorization.

21423424683743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4165550377.

The product of its digits is 18579456, while the sum is 53.

The spelling of 21423424683743 in words is "twenty-one trillion, four hundred twenty-three billion, four hundred twenty-four million, six hundred eighty-three thousand, seven hundred forty-three".