23653635623 has 2 divisors, whose sum is σ = 23653635624. Its totient is φ = 23653635622.

The previous prime is 23653635571. The next prime is 23653635631. The reversal of 23653635623 is 32653635632.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23653635623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23653635653) 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, 11826817811 + 11826817812.

It is an arithmetic number, because the mean of its divisors is an integer number (11826817812).

Almost surely, 2^23653635623 is an apocalyptic number.

23653635623 is a deficient number, since it is larger than the sum of its proper divisors (1).

23653635623 is an equidigital number, since it uses as much as digits as its factorization.

23653635623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1749600, while the sum is 44.

Subtracting 23653635623 from its reverse (32653635632), we obtain a palindrome (9000000009).

The spelling of 23653635623 in words is "twenty-three billion, six hundred fifty-three million, six hundred thirty-five thousand, six hundred twenty-three".