238787618280 has 256 divisors, whose sum is σ = 763480650240. Its totient is φ = 59612467200.

The previous prime is 238787618249. The next prime is 238787618299. The reversal of 238787618280 is 82816787832.

It is a Cunningham number, because it is equal to 488659²-1.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67433310 + ... + 67436850.

It is an arithmetic number, because the mean of its divisors is an integer number (2982346290).

Almost surely, 2^238787618280 is an apocalyptic number.

238787618280 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 238787618280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381740325120).

238787618280 is an abundant number, since it is smaller than the sum of its proper divisors (524693031960).

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

238787618280 is a wasteful number, since it uses less digits than its factorization.

238787618280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092 (or 4088 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 60.

The spelling of 238787618280 in words is "two hundred thirty-eight billion, seven hundred eighty-seven million, six hundred eighteen thousand, two hundred eighty".