238558316643 has 10 divisors (see below), whose sum is σ = 356364892884. Its totient is φ = 159038877708.

The previous prime is 238558316617. The next prime is 238558316653. The reversal of 238558316643 is 346613855832.

238558316643 is a `hidden beast` number, since 2 + 3 + 8 + 5 + 583 + 16 + 6 + 43 = 666.

238558316643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 238558316643 - 2¹⁸ = 238558054499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238558316643.

It is not an unprimeable number, because it can be changed into a prime (238558316653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1472582121 + ... + 1472582282.

Almost surely, 2^238558316643 is an apocalyptic number.

238558316643 is a deficient number, since it is larger than the sum of its proper divisors (117806576241).

238558316643 is an equidigital number, since it uses as much as digits as its factorization.

238558316643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945164415 (or 2945164406 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 54.

The spelling of 238558316643 in words is "two hundred thirty-eight billion, five hundred fifty-eight million, three hundred sixteen thousand, six hundred forty-three".