24702447949 has 2 divisors, whose sum is σ = 24702447950. Its totient is φ = 24702447948.

The previous prime is 24702447947. The next prime is 24702448003. The reversal of 24702447949 is 94974420742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15698335849 + 9004112100 = 125293^2 + 94890^2 .

It is a cyclic number.

It is not a de Polignac number, because 24702447949 - 2¹ = 24702447947 is a prime.

It is a super-2 number, since 2×24702447949² (a number of 22 digits) contains 22 as substring.

Together with 24702447947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 24702447896 and 24702447905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24702447947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12351223974 + 12351223975.

It is an arithmetic number, because the mean of its divisors is an integer number (12351223975).

Almost surely, 2^24702447949 is an apocalyptic number.

It is an amenable number.

24702447949 is a deficient number, since it is larger than the sum of its proper divisors (1).

24702447949 is an equidigital number, since it uses as much as digits as its factorization.

24702447949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 24702447949 in words is "twenty-four billion, seven hundred two million, four hundred forty-seven thousand, nine hundred forty-nine".