24904640549 has 2 divisors, whose sum is σ = 24904640550. Its totient is φ = 24904640548.

The previous prime is 24904640533. The next prime is 24904640567. The reversal of 24904640549 is 94504640942.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24112499524 + 792141025 = 155282^2 + 28145^2 .

It is a cyclic number.

It is not a de Polignac number, because 24904640549 - 2⁴ = 24904640533 is a prime.

It is a super-2 number, since 2×24904640549² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24904643549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12452320274 + 12452320275.

It is an arithmetic number, because the mean of its divisors is an integer number (12452320275).

Almost surely, 2^24904640549 is an apocalyptic number.

It is an amenable number.

24904640549 is a deficient number, since it is larger than the sum of its proper divisors (1).

24904640549 is an equidigital number, since it uses as much as digits as its factorization.

24904640549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 24904640549 in words is "twenty-four billion, nine hundred four million, six hundred forty thousand, five hundred forty-nine".