238999841808 has 960 divisors, whose sum is σ = 863637223680. Its totient is φ = 56379359232.

The previous prime is 238999841789. The next prime is 238999841837. The reversal of 238999841808 is 808148999832.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5558135835 + ... + 5558135877.

It is an arithmetic number, because the mean of its divisors is an integer number (899622108).

Almost surely, 2^238999841808 is an apocalyptic number.

238999841808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238999841808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431818611840).

238999841808 is an abundant number, since it is smaller than the sum of its proper divisors (624637381872).

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

238999841808 is a wasteful number, since it uses less digits than its factorization.

238999841808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 69.

The spelling of 238999841808 in words is "two hundred thirty-eight billion, nine hundred ninety-nine million, eight hundred forty-one thousand, eight hundred eight".