3856928939808 has 192 divisors, whose sum is σ = 11926309570560. Its totient is φ = 1068494579712.

The previous prime is 3856928939779. The next prime is 3856928939833. The reversal of 3856928939808 is 8089398296583.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3471613 + ... + 4445891.

It is an arithmetic number, because the mean of its divisors is an integer number (62116195680).

Almost surely, 2^{3856928939808} 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 3856928939808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5963154785280).

3856928939808 is an abundant number, since it is smaller than the sum of its proper divisors (8069380630752).

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

3856928939808 is a wasteful number, since it uses less digits than its factorization.

3856928939808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974479 (or 974471 counting only the distinct ones).

The product of its (nonzero) digits is 1612431360, while the sum is 78.

The spelling of 3856928939808 in words is "three trillion, eight hundred fifty-six billion, nine hundred twenty-eight million, nine hundred thirty-nine thousand, eight hundred eight".