846660381079 has 2 divisors, whose sum is σ = 846660381080. Its totient is φ = 846660381078.

The previous prime is 846660381031. The next prime is 846660381157. The reversal of 846660381079 is 970183066648.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 846660381079 - 2⁹ = 846660380567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (846660381379) 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, 423330190539 + 423330190540.

It is an arithmetic number, because the mean of its divisors is an integer number (423330190540).

Almost surely, 2^846660381079 is an apocalyptic number.

846660381079 is a deficient number, since it is larger than the sum of its proper divisors (1).

846660381079 is an equidigital number, since it uses as much as digits as its factorization.

846660381079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 846660381079 in words is "eight hundred forty-six billion, six hundred sixty million, three hundred eighty-one thousand, seventy-nine".