24790275781 has 2 divisors, whose sum is σ = 24790275782. Its totient is φ = 24790275780.

The previous prime is 24790275749. The next prime is 24790275791. The reversal of 24790275781 is 18757209742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16139415681 + 8650860100 = 127041^2 + 93010^2 .

It is a cyclic number.

It is not a de Polignac number, because 24790275781 - 2⁵ = 24790275749 is a prime.

It is a super-2 number, since 2×24790275781² (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 (24790275791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12395137890 + 12395137891.

It is an arithmetic number, because the mean of its divisors is an integer number (12395137891).

Almost surely, 2^24790275781 is an apocalyptic number.

It is an amenable number.

24790275781 is a deficient number, since it is larger than the sum of its proper divisors (1).

24790275781 is an equidigital number, since it uses as much as digits as its factorization.

24790275781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 24790275781 in words is "twenty-four billion, seven hundred ninety million, two hundred seventy-five thousand, seven hundred eighty-one".