65783844107 has 2 divisors, whose sum is σ = 65783844108. Its totient is φ = 65783844106.

The previous prime is 65783844037. The next prime is 65783844157. The reversal of 65783844107 is 70144838756.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65783844107 - 2²⁰ = 65782795531 is a prime.

It is not a weakly prime, because it can be changed into another prime (65783844157) 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, 32891922053 + 32891922054.

It is an arithmetic number, because the mean of its divisors is an integer number (32891922054).

Almost surely, 2^65783844107 is an apocalyptic number.

65783844107 is a deficient number, since it is larger than the sum of its proper divisors (1).

65783844107 is an equidigital number, since it uses as much as digits as its factorization.

65783844107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 65783844107 in words is "sixty-five billion, seven hundred eighty-three million, eight hundred forty-four thousand, one hundred seven".