238022986717 has 2 divisors, whose sum is σ = 238022986718. Its totient is φ = 238022986716.

The previous prime is 238022986681. The next prime is 238022986759. The reversal of 238022986717 is 717689220832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125978144356 + 112044842361 = 354934^2 + 334731^2 .

It is a cyclic number.

It is not a de Polignac number, because 238022986717 - 2⁷ = 238022986589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238022986787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119011493358 + 119011493359.

It is an arithmetic number, because the mean of its divisors is an integer number (119011493359).

Almost surely, 2^238022986717 is an apocalyptic number.

It is an amenable number.

238022986717 is a deficient number, since it is larger than the sum of its proper divisors (1).

238022986717 is an equidigital number, since it uses as much as digits as its factorization.

238022986717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 238022986717 in words is "two hundred thirty-eight billion, twenty-two million, nine hundred eighty-six thousand, seven hundred seventeen".