238191667680 has 192 divisors, whose sum is σ = 776134033920. Its totient is φ = 61355833344.

The previous prime is 238191667669. The next prime is 238191667733. The reversal of 238191667680 is 86766191832.

It is a self number, because there is not a number n which added to its sum of digits gives 238191667680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2420397 + ... + 2516883.

It is an arithmetic number, because the mean of its divisors is an integer number (4042364760).

Almost surely, 2^238191667680 is an apocalyptic number.

238191667680 is a gapful number since it is divisible by the number (20) 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 238191667680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388067016960).

238191667680 is an abundant number, since it is smaller than the sum of its proper divisors (537942366240).

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

238191667680 is a wasteful number, since it uses less digits than its factorization.

238191667680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96681 (or 96673 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 238191667680 in words is "two hundred thirty-eight billion, one hundred ninety-one million, six hundred sixty-seven thousand, six hundred eighty".