24669653849 has 2 divisors, whose sum is σ = 24669653850. Its totient is φ = 24669653848.

The previous prime is 24669653839. The next prime is 24669653857. The reversal of 24669653849 is 94835696642.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24536089600 + 133564249 = 156640^2 + 11557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24669653849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24669653791 and 24669653800.

It is not a weakly prime, because it can be changed into another prime (24669653839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12334826924 + 12334826925.

It is an arithmetic number, because the mean of its divisors is an integer number (12334826925).

Almost surely, 2^24669653849 is an apocalyptic number.

It is an amenable number.

24669653849 is a deficient number, since it is larger than the sum of its proper divisors (1).

24669653849 is an equidigital number, since it uses as much as digits as its factorization.

24669653849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67184640, while the sum is 62.

The spelling of 24669653849 in words is "twenty-four billion, six hundred sixty-nine million, six hundred fifty-three thousand, eight hundred forty-nine".