24653145509 has 2 divisors, whose sum is σ = 24653145510. Its totient is φ = 24653145508.

The previous prime is 24653145499. The next prime is 24653145511. The reversal of 24653145509 is 90554135642.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24141390625 + 511754884 = 155375^2 + 22622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24653145509 is a prime.

Together with 24653145511, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24653145509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24653145109) 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, 12326572754 + 12326572755.

It is an arithmetic number, because the mean of its divisors is an integer number (12326572755).

Almost surely, 2^24653145509 is an apocalyptic number.

It is an amenable number.

24653145509 is a deficient number, since it is larger than the sum of its proper divisors (1).

24653145509 is an equidigital number, since it uses as much as digits as its factorization.

24653145509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 24653145509 in words is "twenty-four billion, six hundred fifty-three million, one hundred forty-five thousand, five hundred nine".