23435505452189 has 2 divisors, whose sum is σ = 23435505452190. Its totient is φ = 23435505452188.

The previous prime is 23435505452137. The next prime is 23435505452279. The reversal of 23435505452189 is 98125450553432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21994646124025 + 1440859328164 = 4689845^2 + 1200358^2 .

It is a cyclic number.

It is not a de Polignac number, because 23435505452189 - 2⁴⁰ = 22335993824413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23435505752189) 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, 11717752726094 + 11717752726095.

It is an arithmetic number, because the mean of its divisors is an integer number (11717752726095).

Almost surely, 2^{23435505452189} is an apocalyptic number.

It is an amenable number.

23435505452189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23435505452189 is an equidigital number, since it uses as much as digits as its factorization.

23435505452189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920000, while the sum is 56.

The spelling of 23435505452189 in words is "twenty-three trillion, four hundred thirty-five billion, five hundred five million, four hundred fifty-two thousand, one hundred eighty-nine".