238179272189 has 2 divisors, whose sum is σ = 238179272190. Its totient is φ = 238179272188.

The previous prime is 238179272141. The next prime is 238179272197. The reversal of 238179272189 is 981272971832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224453275225 + 13725996964 = 473765^2 + 117158^2 .

It is a cyclic number.

It is not a de Polignac number, because 238179272189 - 2⁸ = 238179271933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238179272129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119089636094 + 119089636095.

It is an arithmetic number, because the mean of its divisors is an integer number (119089636095).

Almost surely, 2^238179272189 is an apocalyptic number.

It is an amenable number.

238179272189 is a deficient number, since it is larger than the sum of its proper divisors (1).

238179272189 is an equidigital number, since it uses as much as digits as its factorization.

238179272189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 59.

The spelling of 238179272189 in words is "two hundred thirty-eight billion, one hundred seventy-nine million, two hundred seventy-two thousand, one hundred eighty-nine".