238863866089 has 8 divisors (see below), whose sum is σ = 239748723720. Its totient is φ = 237980448000.

The previous prime is 238863866081. The next prime is 238863866141. The reversal of 238863866089 is 980668368832.

It can be written as a sum of positive squares in 4 ways, for example, as 167614910464 + 71248955625 = 409408^2 + 266925^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 238863866089 - 2³ = 238863866081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238863866081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26842 + ... + 691699.

It is an arithmetic number, because the mean of its divisors is an integer number (29968590465).

Almost surely, 2^238863866089 is an apocalyptic number.

It is an amenable number.

238863866089 is a deficient number, since it is larger than the sum of its proper divisors (884857631).

238863866089 is an equidigital number, since it uses as much as digits as its factorization.

238863866089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719771.

The product of its (nonzero) digits is 143327232, while the sum is 67.

The spelling of 238863866089 in words is "two hundred thirty-eight billion, eight hundred sixty-three million, eight hundred sixty-six thousand, eighty-nine".