11707896449981 has 2 divisors, whose sum is σ = 11707896449982. Its totient is φ = 11707896449980.

The previous prime is 11707896449939. The next prime is 11707896450011. The reversal of 11707896449981 is 18994469870711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11691161146756 + 16735303225 = 3419234^2 + 129365^2 .

It is a cyclic number.

It is not a de Polignac number, because 11707896449981 - 2¹⁸ = 11707896187837 is a prime.

It is a super-2 number, since 2×11707896449981² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11707896449899 and 11707896449908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11707896749981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5853948224990 + 5853948224991.

It is an arithmetic number, because the mean of its divisors is an integer number (5853948224991).

Almost surely, 2^{11707896449981} is an apocalyptic number.

It is an amenable number.

11707896449981 is a deficient number, since it is larger than the sum of its proper divisors (1).

11707896449981 is an equidigital number, since it uses as much as digits as its factorization.

11707896449981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 219469824, while the sum is 74.

The spelling of 11707896449981 in words is "eleven trillion, seven hundred seven billion, eight hundred ninety-six million, four hundred forty-nine thousand, nine hundred eighty-one".