238038817076393 has 2 divisors, whose sum is σ = 238038817076394. Its totient is φ = 238038817076392.

The previous prime is 238038817076363. The next prime is 238038817076461. The reversal of 238038817076393 is 393670718830832.

It is an a-pointer prime, because the next prime (238038817076461) can be obtained adding 238038817076393 to its sum of digits (68).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172493471540329 + 65545345536064 = 13133677^2 + 8096008^2 .

It is a cyclic number.

It is not a de Polignac number, because 238038817076393 - 2¹⁰ = 238038817075369 is a prime.

It is not a weakly prime, because it can be changed into another prime (238038817076323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119019408538196 + 119019408538197.

It is an arithmetic number, because the mean of its divisors is an integer number (119019408538197).

Almost surely, 2^{238038817076393} is an apocalyptic number.

It is an amenable number.

238038817076393 is a deficient number, since it is larger than the sum of its proper divisors (1).

238038817076393 is an equidigital number, since it uses as much as digits as its factorization.

238038817076393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 219469824, while the sum is 68.

The spelling of 238038817076393 in words is "two hundred thirty-eight trillion, thirty-eight billion, eight hundred seventeen million, seventy-six thousand, three hundred ninety-three".