238237739999280 has 960 divisors, whose sum is σ = 972701148856320. Its totient is φ = 51188644159488.

The previous prime is 238237739999159. The next prime is 238237739999317. The reversal of 238237739999280 is 82999937732832.

238237739999280 is a `hidden beast` number, since 2 + 3 + 82 + 3 + 77 + 399 + 9 + 9 + 2 + 80 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 238237739999280.

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, 21963462817 + ... + 21963473663.

It is an arithmetic number, because the mean of its divisors is an integer number (1013230363392).

Almost surely, 2^{238237739999280} is an apocalyptic number.

238237739999280 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 238237739999280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486350574428160).

238237739999280 is an abundant number, since it is smaller than the sum of its proper divisors (734463408857040).

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

238237739999280 is a wasteful number, since it uses less digits than its factorization.

238237739999280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11811 (or 11768 counting only the distinct ones).

The product of its (nonzero) digits is 4444263936, while the sum is 81.

The spelling of 238237739999280 in words is "two hundred thirty-eight trillion, two hundred thirty-seven billion, seven hundred thirty-nine million, nine hundred ninety-nine thousand, two hundred eighty".