23543406325057 has 16 divisors (see below), whose sum is σ = 25407327191040. Its totient is φ = 21761640240912.

The previous prime is 23543406325009. The next prime is 23543406325067. The reversal of 23543406325057 is 75052360434532.

It is a de Polignac number, because none of the positive numbers 2^k-23543406325057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23543406325057.

It is not an unprimeable number, because it can be changed into a prime (23543406325007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137758173 + ... + 137928970.

It is an arithmetic number, because the mean of its divisors is an integer number (1587957949440).

Almost surely, 2^{23543406325057} is an apocalyptic number.

It is an amenable number.

23543406325057 is a deficient number, since it is larger than the sum of its proper divisors (1863920865983).

23543406325057 is a wasteful number, since it uses less digits than its factorization.

23543406325057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275687292.

The product of its (nonzero) digits is 9072000, while the sum is 49.

Adding to 23543406325057 its reverse (75052360434532), we get a palindrome (98595766759589).

The spelling of 23543406325057 in words is "twenty-three trillion, five hundred forty-three billion, four hundred six million, three hundred twenty-five thousand, fifty-seven".