11694637860641 has 2 divisors, whose sum is σ = 11694637860642. Its totient is φ = 11694637860640.

The previous prime is 11694637860623. The next prime is 11694637860671. The reversal of 11694637860641 is 14606873649611.

11694637860641 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., 11657471804416 + 37166056225 = 3414304^2 + 192785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11694637860641 is a prime.

It is not a weakly prime, because it can be changed into another prime (11694637860671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5847318930320 + 5847318930321.

It is an arithmetic number, because the mean of its divisors is an integer number (5847318930321).

Almost surely, 2^{11694637860641} is an apocalyptic number.

It is an amenable number.

11694637860641 is a deficient number, since it is larger than the sum of its proper divisors (1).

11694637860641 is an equidigital number, since it uses as much as digits as its factorization.

11694637860641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 11694637860641 in words is "eleven trillion, six hundred ninety-four billion, six hundred thirty-seven million, eight hundred sixty thousand, six hundred forty-one".