238766789069 has 2 divisors, whose sum is σ = 238766789070. Its totient is φ = 238766789068.

The previous prime is 238766789017. The next prime is 238766789087. The reversal of 238766789069 is 960987667832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238422241225 + 344547844 = 488285^2 + 18562^2 .

It is a cyclic number.

It is not a de Polignac number, because 238766789069 - 2¹² = 238766784973 is a prime.

It is a super-2 number, since 2×238766789069² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 238766788993 and 238766789011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238766789099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119383394534 + 119383394535.

It is an arithmetic number, because the mean of its divisors is an integer number (119383394535).

Almost surely, 2^238766789069 is an apocalyptic number.

It is an amenable number.

238766789069 is a deficient number, since it is larger than the sum of its proper divisors (1).

238766789069 is an equidigital number, since it uses as much as digits as its factorization.

238766789069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 329204736, while the sum is 71.

The spelling of 238766789069 in words is "two hundred thirty-eight billion, seven hundred sixty-six million, seven hundred eighty-nine thousand, sixty-nine".