24890306249 has 2 divisors, whose sum is σ = 24890306250. Its totient is φ = 24890306248.

The previous prime is 24890306159. The next prime is 24890306263. The reversal of 24890306249 is 94260309842.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15585774649 + 9304531600 = 124843^2 + 96460^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24890306249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (24890306549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12445153124 + 12445153125.

It is an arithmetic number, because the mean of its divisors is an integer number (12445153125).

Almost surely, 2^24890306249 is an apocalyptic number.

It is an amenable number.

24890306249 is a deficient number, since it is larger than the sum of its proper divisors (1).

24890306249 is an equidigital number, since it uses as much as digits as its factorization.

24890306249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 24890306249 in words is "twenty-four billion, eight hundred ninety million, three hundred six thousand, two hundred forty-nine".