11707530007681 has 2 divisors, whose sum is σ = 11707530007682. Its totient is φ = 11707530007680.

The previous prime is 11707530007673. The next prime is 11707530007697. The reversal of 11707530007681 is 18670003570711.

11707530007681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9327557351025 + 2379972656656 = 3054105^2 + 1542716^2 .

It is an emirp because it is prime and its reverse (18670003570711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11707530007681 - 2³ = 11707530007673 is a prime.

It is a super-2 number, since 2×11707530007681² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11707530007661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5853765003840 + 5853765003841.

It is an arithmetic number, because the mean of its divisors is an integer number (5853765003841).

Almost surely, 2^{11707530007681} is an apocalyptic number.

It is an amenable number.

11707530007681 is a deficient number, since it is larger than the sum of its proper divisors (1).

11707530007681 is an equidigital number, since it uses as much as digits as its factorization.

11707530007681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 46.

The spelling of 11707530007681 in words is "eleven trillion, seven hundred seven billion, five hundred thirty million, seven thousand, six hundred eighty-one".