11825796507281 has 2 divisors, whose sum is σ = 11825796507282. Its totient is φ = 11825796507280.

The previous prime is 11825796507247. The next prime is 11825796507313. The reversal of 11825796507281 is 18270569752811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10403263217281 + 1422533290000 = 3225409^2 + 1192700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11825796507281 is a prime.

It is a super-2 number, since 2×11825796507281² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11825796507211) 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, 5912898253640 + 5912898253641.

It is an arithmetic number, because the mean of its divisors is an integer number (5912898253641).

Almost surely, 2^{11825796507281} is an apocalyptic number.

It is an amenable number.

11825796507281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11825796507281 is an equidigital number, since it uses as much as digits as its factorization.

11825796507281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16934400, while the sum is 62.

The spelling of 11825796507281 in words is "eleven trillion, eight hundred twenty-five billion, seven hundred ninety-six million, five hundred seven thousand, two hundred eighty-one".