24453661506649 has 2 divisors, whose sum is σ = 24453661506650. Its totient is φ = 24453661506648.

The previous prime is 24453661506643. The next prime is 24453661506689. The reversal of 24453661506649 is 94660516635442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18714968166400 + 5738693340249 = 4326080^2 + 2395557^2 .

It is a cyclic number.

It is not a de Polignac number, because 24453661506649 - 2³³ = 24445071572057 is a prime.

It is a super-2 number, since 2×24453661506649² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24453661506643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12226830753324 + 12226830753325.

It is an arithmetic number, because the mean of its divisors is an integer number (12226830753325).

Almost surely, 2^{24453661506649} is an apocalyptic number.

It is an amenable number.

24453661506649 is a deficient number, since it is larger than the sum of its proper divisors (1).

24453661506649 is an equidigital number, since it uses as much as digits as its factorization.

24453661506649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111974400, while the sum is 61.

The spelling of 24453661506649 in words is "twenty-four trillion, four hundred fifty-three billion, six hundred sixty-one million, five hundred six thousand, six hundred forty-nine".