24720451793 has 2 divisors, whose sum is σ = 24720451794. Its totient is φ = 24720451792.

The previous prime is 24720451787. The next prime is 24720451801. The reversal of 24720451793 is 39715402742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22652658064 + 2067793729 = 150508^2 + 45473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24720451793 is a prime.

It is a super-2 number, since 2×24720451793² (a number of 22 digits) contains 22 as substring.

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 (24720451703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12360225896 + 12360225897.

It is an arithmetic number, because the mean of its divisors is an integer number (12360225897).

Almost surely, 2^24720451793 is an apocalyptic number.

It is an amenable number.

24720451793 is a deficient number, since it is larger than the sum of its proper divisors (1).

24720451793 is an equidigital number, since it uses as much as digits as its factorization.

24720451793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 24720451793 in words is "twenty-four billion, seven hundred twenty million, four hundred fifty-one thousand, seven hundred ninety-three".