785685649967 has 2 divisors, whose sum is σ = 785685649968. Its totient is φ = 785685649966.

The previous prime is 785685649937. The next prime is 785685650021. The reversal of 785685649967 is 769946586587.

It is a weak prime.

It is an emirp because it is prime and its reverse (769946586587) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 785685649967 - 2¹⁴ = 785685633583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 785685649891 and 785685649900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (785685649937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392842824983 + 392842824984.

It is an arithmetic number, because the mean of its divisors is an integer number (392842824984).

Almost surely, 2^785685649967 is an apocalyptic number.

785685649967 is a deficient number, since it is larger than the sum of its proper divisors (1).

785685649967 is an equidigital number, since it uses as much as digits as its factorization.

785685649967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5486745600, while the sum is 80.

The spelling of 785685649967 in words is "seven hundred eighty-five billion, six hundred eighty-five million, six hundred forty-nine thousand, nine hundred sixty-seven".