65234834809 has 2 divisors, whose sum is σ = 65234834810. Its totient is φ = 65234834808.

The previous prime is 65234834803. The next prime is 65234834867. The reversal of 65234834809 is 90843843256.

65234834809 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 can be written as a sum of positive squares in only one way, i.e., 57886916409 + 7347918400 = 240597^2 + 85720^2 .

It is a cyclic number.

It is not a de Polignac number, because 65234834809 - 2⁷ = 65234834681 is a prime.

It is not a weakly prime, because it can be changed into another prime (65234834803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32617417404 + 32617417405.

It is an arithmetic number, because the mean of its divisors is an integer number (32617417405).

Almost surely, 2^65234834809 is an apocalyptic number.

It is an amenable number.

65234834809 is a deficient number, since it is larger than the sum of its proper divisors (1).

65234834809 is an equidigital number, since it uses as much as digits as its factorization.

65234834809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 65234834809 in words is "sixty-five billion, two hundred thirty-four million, eight hundred thirty-four thousand, eight hundred nine".