238668733535 has 4 divisors (see below), whose sum is σ = 286402480248. Its totient is φ = 190934986824.

The previous prime is 238668733519. The next prime is 238668733549. The reversal of 238668733535 is 535337866832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238668733535 - 2⁴ = 238668733519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 23866873349 + ... + 23866873358.

It is an arithmetic number, because the mean of its divisors is an integer number (71600620062).

Almost surely, 2^238668733535 is an apocalyptic number.

238668733535 is a deficient number, since it is larger than the sum of its proper divisors (47733746713).

238668733535 is an equidigital number, since it uses as much as digits as its factorization.

238668733535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47733746712.

The product of its digits is 65318400, while the sum is 59.

The spelling of 238668733535 in words is "two hundred thirty-eight billion, six hundred sixty-eight million, seven hundred thirty-three thousand, five hundred thirty-five".