238038817076453 has 4 divisors (see below), whose sum is σ = 241391476471968. Its totient is φ = 234686157680940.

The previous prime is 238038817076393. The next prime is 238038817076461. The reversal of 238038817076453 is 354670718830832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 238038817076453 - 2²² = 238038812882149 is a prime.

It is a super-2 number, since 2×238038817076453² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 238038817076453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238038817046453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676329697651 + ... + 1676329697792.

It is an arithmetic number, because the mean of its divisors is an integer number (60347869117992).

Almost surely, 2^{238038817076453} is an apocalyptic number.

It is an amenable number.

238038817076453 is a deficient number, since it is larger than the sum of its proper divisors (3352659395515).

238038817076453 is an equidigital number, since it uses as much as digits as its factorization.

238038817076453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352659395514.

The product of its (nonzero) digits is 162570240, while the sum is 65.

The spelling of 238038817076453 in words is "two hundred thirty-eight trillion, thirty-eight billion, eight hundred seventeen million, seventy-six thousand, four hundred fifty-three".