65783945827 has 2 divisors, whose sum is σ = 65783945828. Its totient is φ = 65783945826.

The previous prime is 65783945809. The next prime is 65783945849. The reversal of 65783945827 is 72854938756.

65783945827 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 is a cyclic number.

It is not a de Polignac number, because 65783945827 - 2⁷ = 65783945699 is a prime.

It is not a weakly prime, because it can be changed into another prime (65783942827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32891972913 + 32891972914.

It is an arithmetic number, because the mean of its divisors is an integer number (32891972914).

Almost surely, 2^65783945827 is an apocalyptic number.

65783945827 is a deficient number, since it is larger than the sum of its proper divisors (1).

65783945827 is an equidigital number, since it uses as much as digits as its factorization.

65783945827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 101606400, while the sum is 64.

The spelling of 65783945827 in words is "sixty-five billion, seven hundred eighty-three million, nine hundred forty-five thousand, eight hundred twenty-seven".