3978718300000 has 216 divisors, whose sum is σ = 9903966230592. Its totient is φ = 1573292160000.

The previous prime is 3978718299937. The next prime is 3978718300009. The reversal of 3978718300000 is 38178793.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978718300009) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 792097489 + ... + 792102511.

It is an arithmetic number, because the mean of its divisors is an integer number (45851695512).

Almost surely, 2^{3978718300000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3978718300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4951983115296).

3978718300000 is an abundant number, since it is smaller than the sum of its proper divisors (5925247930592).

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

3978718300000 is an frugal number, since it uses more digits than its factorization.

3978718300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5236 (or 5119 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 3978718300000 in words is "three trillion, nine hundred seventy-eight billion, seven hundred eighteen million, three hundred thousand".