232505609389 has 2 divisors, whose sum is σ = 232505609390. Its totient is φ = 232505609388.

The previous prime is 232505609269. The next prime is 232505609407. The reversal of 232505609389 is 983906505232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121133233764 + 111372375625 = 348042^2 + 333725^2 .

It is a cyclic number.

It is not a de Polignac number, because 232505609389 - 2¹⁹ = 232505085101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232505609789) 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, 116252804694 + 116252804695.

It is an arithmetic number, because the mean of its divisors is an integer number (116252804695).

Almost surely, 2^232505609389 is an apocalyptic number.

It is an amenable number.

232505609389 is a deficient number, since it is larger than the sum of its proper divisors (1).

232505609389 is an equidigital number, since it uses as much as digits as its factorization.

232505609389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 232505609389 in words is "two hundred thirty-two billion, five hundred five million, six hundred nine thousand, three hundred eighty-nine".