3911820768 has 216 divisors, whose sum is σ = 12102978888. Its totient is φ = 1197600768.

The previous prime is 3911820739. The next prime is 3911820821. The reversal of 3911820768 is 8670281193.

It is a super-2 number, since 2×3911820768² = 30604683441912219648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3578430 + ... + 3579522.

Almost surely, 2^3911820768 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 3911820768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6051489444).

3911820768 is an abundant number, since it is smaller than the sum of its proper divisors (8191158120).

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

3911820768 is a wasteful number, since it uses less digits than its factorization.

3911820768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 3911820768 is about 62544.5502661903. The cubic root of 3911820768 is about 1575.6496210619.

The spelling of 3911820768 in words is "three billion, nine hundred eleven million, eight hundred twenty thousand, seven hundred sixty-eight".