24740799649 has 2 divisors, whose sum is σ = 24740799650. Its totient is φ = 24740799648.

The previous prime is 24740799647. The next prime is 24740799653. The reversal of 24740799649 is 94699704742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13080039424 + 11660760225 = 114368^2 + 107985^2 .

It is a cyclic number.

It is not a de Polignac number, because 24740799649 - 2¹ = 24740799647 is a prime.

It is a super-2 number, since 2×24740799649² (a number of 22 digits) contains 22 as substring.

Together with 24740799647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (24740799647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12370399824 + 12370399825.

It is an arithmetic number, because the mean of its divisors is an integer number (12370399825).

Almost surely, 2^24740799649 is an apocalyptic number.

It is an amenable number.

24740799649 is a deficient number, since it is larger than the sum of its proper divisors (1).

24740799649 is an equidigital number, since it uses as much as digits as its factorization.

24740799649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 24740799649 in words is "twenty-four billion, seven hundred forty million, seven hundred ninety-nine thousand, six hundred forty-nine".