238820064239 has 2 divisors, whose sum is σ = 238820064240. Its totient is φ = 238820064238.

The previous prime is 238820064199. The next prime is 238820064397. The reversal of 238820064239 is 932460028832.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238820064239 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 238820064193 and 238820064202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238820066239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119410032119 + 119410032120.

It is an arithmetic number, because the mean of its divisors is an integer number (119410032120).

Almost surely, 2^238820064239 is an apocalyptic number.

238820064239 is a deficient number, since it is larger than the sum of its proper divisors (1).

238820064239 is an equidigital number, since it uses as much as digits as its factorization.

238820064239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 238820064239 in words is "two hundred thirty-eight billion, eight hundred twenty million, sixty-four thousand, two hundred thirty-nine".