3863981708928 has 448 divisors, whose sum is σ = 13138098886080. Its totient is φ = 1119987855360.

The previous prime is 3863981708911. The next prime is 3863981708933. The reversal of 3863981708928 is 8298071893683.

3863981708928 is a `hidden beast` number, since 3 + 86 + 398 + 1 + 70 + 8 + 92 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 23526100 + ... + 23689772.

It is an arithmetic number, because the mean of its divisors is an integer number (29326113585).

Almost surely, 2^{3863981708928} 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 3863981708928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6569049443040).

3863981708928 is an abundant number, since it is smaller than the sum of its proper divisors (9274117177152).

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

3863981708928 is a wasteful number, since it uses less digits than its factorization.

3863981708928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163739 (or 163712 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 72.

The spelling of 3863981708928 in words is "three trillion, eight hundred sixty-three billion, nine hundred eighty-one million, seven hundred eight thousand, nine hundred twenty-eight".