238446266856463 has 2 divisors, whose sum is σ = 238446266856464. Its totient is φ = 238446266856462.

The previous prime is 238446266856289. The next prime is 238446266856529. The reversal of 238446266856463 is 364658662644832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238446266856463 - 2¹³ = 238446266848271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238446266853463) 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, 119223133428231 + 119223133428232.

It is an arithmetic number, because the mean of its divisors is an integer number (119223133428232).

Almost surely, 2^{238446266856463} is an apocalyptic number.

238446266856463 is a deficient number, since it is larger than the sum of its proper divisors (1).

238446266856463 is an equidigital number, since it uses as much as digits as its factorization.

238446266856463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5733089280, while the sum is 73.

The spelling of 238446266856463 in words is "two hundred thirty-eight trillion, four hundred forty-six billion, two hundred sixty-six million, eight hundred fifty-six thousand, four hundred sixty-three".