23543925397943 has 4 divisors (see below), whose sum is σ = 23546461648248. Its totient is φ = 23541389147640.

The previous prime is 23543925397859. The next prime is 23543925397997. The reversal of 23543925397943 is 34979352934532.

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 23543925397943 - 2¹² = 23543925393847 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 (23543945397943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1268111228 + ... + 1268129793.

It is an arithmetic number, because the mean of its divisors is an integer number (5886615412062).

Almost surely, 2^{23543925397943} is an apocalyptic number.

23543925397943 is a deficient number, since it is larger than the sum of its proper divisors (2536250305).

23543925397943 is an equidigital number, since it uses as much as digits as its factorization.

23543925397943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536250304.

The product of its digits is 661348800, while the sum is 68.

The spelling of 23543925397943 in words is "twenty-three trillion, five hundred forty-three billion, nine hundred twenty-five million, three hundred ninety-seven thousand, nine hundred forty-three".