238179358709 has 2 divisors, whose sum is σ = 238179358710. Its totient is φ = 238179358708.

The previous prime is 238179358621. The next prime is 238179358717. The reversal of 238179358709 is 907853971832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222963396100 + 15215962609 = 472190^2 + 123353^2 .

It is a cyclic number.

It is not a de Polignac number, because 238179358709 - 2⁸ = 238179358453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238179358009) 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, 119089679354 + 119089679355.

It is an arithmetic number, because the mean of its divisors is an integer number (119089679355).

Almost surely, 2^238179358709 is an apocalyptic number.

It is an amenable number.

238179358709 is a deficient number, since it is larger than the sum of its proper divisors (1).

238179358709 is an equidigital number, since it uses as much as digits as its factorization.

238179358709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 238179358709 in words is "two hundred thirty-eight billion, one hundred seventy-nine million, three hundred fifty-eight thousand, seven hundred nine".