238648989888 has 168 divisors, whose sum is σ = 720692406720. Its totient is φ = 75295249920.

The previous prime is 238648989853. The next prime is 238648989893. The reversal of 238648989888 is 888989846832.

238648989888 is a `hidden beast` number, since 2 + 386 + 4 + 89 + 89 + 8 + 88 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12981343 + ... + 12999713.

Almost surely, 2^238648989888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238648989888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360346203360).

238648989888 is an abundant number, since it is smaller than the sum of its proper divisors (482043416832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238648989888 is a wasteful number, since it uses less digits than its factorization.

238648989888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19595 (or 19582 counting only the distinct ones).

The product of its digits is 3057647616, while the sum is 81.

The spelling of 238648989888 in words is "two hundred thirty-eight billion, six hundred forty-eight million, nine hundred eighty-nine thousand, eight hundred eighty-eight".