11842256641 has 2 divisors, whose sum is σ = 11842256642. Its totient is φ = 11842256640.

The previous prime is 11842256639. The next prime is 11842256651. The reversal of 11842256641 is 14665224811.

11842256641 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., 11598428416 + 243828225 = 107696^2 + 15615^2 .

It is a cyclic number.

It is not a de Polignac number, because 11842256641 - 2¹ = 11842256639 is a prime.

Together with 11842256639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11842256594 and 11842256603.

It is not a weakly prime, because it can be changed into another prime (11842256611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5921128320 + 5921128321.

It is an arithmetic number, because the mean of its divisors is an integer number (5921128321).

Almost surely, 2^11842256641 is an apocalyptic number.

It is an amenable number.

11842256641 is a deficient number, since it is larger than the sum of its proper divisors (1).

11842256641 is an equidigital number, since it uses as much as digits as its factorization.

11842256641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 40.

The spelling of 11842256641 in words is "eleven billion, eight hundred forty-two million, two hundred fifty-six thousand, six hundred forty-one".