238179275189 has 2 divisors, whose sum is σ = 238179275190. Its totient is φ = 238179275188.

The previous prime is 238179275167. The next prime is 238179275207. The reversal of 238179275189 is 981572971832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191719628164 + 46459647025 = 437858^2 + 215545^2 .

It is a cyclic number.

It is not a de Polignac number, because 238179275189 - 2²⁴ = 238162497973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238179272189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119089637594 + 119089637595.

It is an arithmetic number, because the mean of its divisors is an integer number (119089637595).

Almost surely, 2^238179275189 is an apocalyptic number.

It is an amenable number.

238179275189 is a deficient number, since it is larger than the sum of its proper divisors (1).

238179275189 is an equidigital number, since it uses as much as digits as its factorization.

238179275189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 62.

The spelling of 238179275189 in words is "two hundred thirty-eight billion, one hundred seventy-nine million, two hundred seventy-five thousand, one hundred eighty-nine".