23744459421 has 8 divisors (see below), whose sum is σ = 35176976960. Its totient is φ = 15829639596.

The previous prime is 23744459407. The next prime is 23744459441. The reversal of 23744459421 is 12495444732.

23744459421 is a `hidden beast` number, since 2 + 37 + 4 + 4 + 4 + 594 + 21 = 666.

It is not a de Polignac number, because 23744459421 - 2¹⁸ = 23744197277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23744459441) 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 7 ways as a sum of consecutive naturals, for example, 439712185 + ... + 439712238.

It is an arithmetic number, because the mean of its divisors is an integer number (4397122120).

Almost surely, 2^23744459421 is an apocalyptic number.

It is an amenable number.

23744459421 is a deficient number, since it is larger than the sum of its proper divisors (11432517539).

23744459421 is an equidigital number, since it uses as much as digits as its factorization.

23744459421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879424432 (or 879424426 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 23744459421 in words is "twenty-three billion, seven hundred forty-four million, four hundred fifty-nine thousand, four hundred twenty-one".