11842046857 has 2 divisors, whose sum is σ = 11842046858. Its totient is φ = 11842046856.

The previous prime is 11842046683. The next prime is 11842046863. The reversal of 11842046857 is 75864024811.

11842046857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11831130441 + 10916416 = 108771^2 + 3304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11842046857 is a prime.

It is not a weakly prime, because it can be changed into another prime (11842146857) 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, 5921023428 + 5921023429.

It is an arithmetic number, because the mean of its divisors is an integer number (5921023429).

Almost surely, 2^11842046857 is an apocalyptic number.

It is an amenable number.

11842046857 is a deficient number, since it is larger than the sum of its proper divisors (1).

11842046857 is an equidigital number, since it uses as much as digits as its factorization.

11842046857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 11842046857 in words is "eleven billion, eight hundred forty-two million, forty-six thousand, eight hundred fifty-seven".