23534043563 has 2 divisors, whose sum is σ = 23534043564. Its totient is φ = 23534043562.

The previous prime is 23534043503. The next prime is 23534043569. The reversal of 23534043563 is 36534043532.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23534043563 is a prime.

It is not a weakly prime, because it can be changed into another prime (23534043569) 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 as a sum of consecutive naturals, namely, 11767021781 + 11767021782.

It is an arithmetic number, because the mean of its divisors is an integer number (11767021782).

Almost surely, 2^23534043563 is an apocalyptic number.

23534043563 is a deficient number, since it is larger than the sum of its proper divisors (1).

23534043563 is an equidigital number, since it uses as much as digits as its factorization.

23534043563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 38.

The spelling of 23534043563 in words is "twenty-three billion, five hundred thirty-four million, forty-three thousand, five hundred sixty-three".