3959796816 has 120 divisors (see below), whose sum is σ = 11307548096. Its totient is φ = 1293304320.

The previous prime is 3959796803. The next prime is 3959796823. The reversal of 3959796816 is 6186979593.

3959796816 is a `hidden beast` number, since 39 + 597 + 9 + 6 + 8 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1712301 + ... + 1714611.

Almost surely, 2^3959796816 is an apocalyptic number.

3959796816 is a gapful number since it is divisible by the number (36) 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 3959796816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5653774048).

3959796816 is an abundant number, since it is smaller than the sum of its proper divisors (7347751280).

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

3959796816 is a wasteful number, since it uses less digits than its factorization.

3959796816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561 (or 2552 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 63.

The square root of 3959796816 is about 62926.9164666441. The cubic root of 3959796816 is about 1582.0649196632.

The spelling of 3959796816 in words is "three billion, nine hundred fifty-nine million, seven hundred ninety-six thousand, eight hundred sixteen".