238204507889 has 2 divisors, whose sum is σ = 238204507890. Its totient is φ = 238204507888.

The previous prime is 238204507883. The next prime is 238204507967. The reversal of 238204507889 is 988705402832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235783080625 + 2421427264 = 485575^2 + 49208^2 .

It is a cyclic number.

It is not a de Polignac number, because 238204507889 - 2¹⁶ = 238204442353 is a prime.

It is not a weakly prime, because it can be changed into another prime (238204507883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119102253944 + 119102253945.

It is an arithmetic number, because the mean of its divisors is an integer number (119102253945).

Almost surely, 2^238204507889 is an apocalyptic number.

It is an amenable number.

238204507889 is a deficient number, since it is larger than the sum of its proper divisors (1).

238204507889 is an equidigital number, since it uses as much as digits as its factorization.

238204507889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 238204507889 in words is "two hundred thirty-eight billion, two hundred four million, five hundred seven thousand, eight hundred eighty-nine".