23424821363549 has 2 divisors, whose sum is σ = 23424821363550. Its totient is φ = 23424821363548.

The previous prime is 23424821363539. The next prime is 23424821363551. The reversal of 23424821363549 is 94536312842432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16656275064100 + 6768546299449 = 4081210^2 + 2601643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23424821363549 is a prime.

Together with 23424821363551, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23424821363494 and 23424821363503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23424821363539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11712410681774 + 11712410681775.

It is an arithmetic number, because the mean of its divisors is an integer number (11712410681775).

Almost surely, 2^{23424821363549} is an apocalyptic number.

It is an amenable number.

23424821363549 is a deficient number, since it is larger than the sum of its proper divisors (1).

23424821363549 is an equidigital number, since it uses as much as digits as its factorization.

23424821363549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29859840, while the sum is 56.

The spelling of 23424821363549 in words is "twenty-three trillion, four hundred twenty-four billion, eight hundred twenty-one million, three hundred sixty-three thousand, five hundred forty-nine".