38781300000 has 288 divisors, whose sum is σ = 127992057984. Its totient is φ = 10280960000.

The previous prime is 38781299959. The next prime is 38781300011. The reversal of 38781300000 is 318783.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77099749 + ... + 77100251.

It is an arithmetic number, because the mean of its divisors is an integer number (444416868).

Almost surely, 2^38781300000 is an apocalyptic number.

38781300000 is a gapful number since it is divisible by the number (30) 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 38781300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63996028992).

38781300000 is an abundant number, since it is smaller than the sum of its proper divisors (89210757984).

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

38781300000 is an equidigital number, since it uses as much as digits as its factorization.

38781300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

Adding to 38781300000 its reverse (318783), we get a palindrome (38781618783).

The spelling of 38781300000 in words is "thirty-eight billion, seven hundred eighty-one million, three hundred thousand".