23554440423 has 24 divisors (see below), whose sum is σ = 36030251088. Its totient is φ = 14776872192.

The previous prime is 23554440401. The next prime is 23554440439. The reversal of 23554440423 is 32404445532.

23554440423 is a `hidden beast` number, since 2 + 35 + 544 + 40 + 42 + 3 = 666.

It is not a de Polignac number, because 23554440423 - 2²⁴ = 23537663207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23554440473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1809165 + ... + 1822137.

It is an arithmetic number, because the mean of its divisors is an integer number (1501260462).

Almost surely, 2^23554440423 is an apocalyptic number.

23554440423 is a deficient number, since it is larger than the sum of its proper divisors (12475810665).

23554440423 is a wasteful number, since it uses less digits than its factorization.

23554440423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24863 (or 24860 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 23554440423 its reverse (32404445532), we get a palindrome (55958885955).

The spelling of 23554440423 in words is "twenty-three billion, five hundred fifty-four million, four hundred forty thousand, four hundred twenty-three".