23505643067 has 2 divisors, whose sum is σ = 23505643068. Its totient is φ = 23505643066.

The previous prime is 23505643043. The next prime is 23505643097. The reversal of 23505643067 is 76034650532.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23505643067 is a prime.

It is not a weakly prime, because it can be changed into another prime (23505643027) 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, 11752821533 + 11752821534.

It is an arithmetic number, because the mean of its divisors is an integer number (11752821534).

Almost surely, 2^23505643067 is an apocalyptic number.

23505643067 is a deficient number, since it is larger than the sum of its proper divisors (1).

23505643067 is an equidigital number, since it uses as much as digits as its factorization.

23505643067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 41.

The spelling of 23505643067 in words is "twenty-three billion, five hundred five million, six hundred forty-three thousand, sixty-seven".