235220065789 has 2 divisors, whose sum is σ = 235220065790. Its totient is φ = 235220065788.

The previous prime is 235220065781. The next prime is 235220065831. The reversal of 235220065789 is 987560022532.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231409102500 + 3810963289 = 481050^2 + 61733^2 .

It is a cyclic number.

It is not a de Polignac number, because 235220065789 - 2³ = 235220065781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235220065781) 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, 117610032894 + 117610032895.

It is an arithmetic number, because the mean of its divisors is an integer number (117610032895).

Almost surely, 2^235220065789 is an apocalyptic number.

It is an amenable number.

235220065789 is a deficient number, since it is larger than the sum of its proper divisors (1).

235220065789 is an equidigital number, since it uses as much as digits as its factorization.

235220065789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 235220065789 in words is "two hundred thirty-five billion, two hundred twenty million, sixty-five thousand, seven hundred eighty-nine".