23205454543 has 8 divisors (see below), whose sum is σ = 23242040640. Its totient is φ = 23168893440.

The previous prime is 23205454537. The next prime is 23205454567. The reversal of 23205454543 is 34545450232.

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 23205454543 - 2¹³ = 23205446351 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 (23205454043) 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, 2717146 + ... + 2725672.

It is an arithmetic number, because the mean of its divisors is an integer number (2905255080).

Almost surely, 2^23205454543 is an apocalyptic number.

23205454543 is a deficient number, since it is larger than the sum of its proper divisors (36586097).

23205454543 is an equidigital number, since it uses as much as digits as its factorization.

23205454543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12497.

The product of its (nonzero) digits is 288000, while the sum is 37.

The spelling of 23205454543 in words is "twenty-three billion, two hundred five million, four hundred fifty-four thousand, five hundred forty-three".