3920768816 has 30 divisors (see below), whose sum is σ = 7705147836. Its totient is φ = 1932733600.

The previous prime is 3920768773. The next prime is 3920768821. The reversal of 3920768816 is 6188670293.

3920768816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56351 + ... + 104961.

Almost surely, 2^3920768816 is an apocalyptic number.

It is an amenable number.

3920768816 is a deficient number, since it is larger than the sum of its proper divisors (3784379020).

3920768816 is an equidigital number, since it uses as much as digits as its factorization.

3920768816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48761 (or 48684 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 3920768816 is about 62616.0428005475. The cubic root of 3920768816 is about 1576.8501065246.

The spelling of 3920768816 in words is "three billion, nine hundred twenty million, seven hundred sixty-eight thousand, eight hundred sixteen".