3853818216 has 64 divisors (see below), whose sum is σ = 10811102400. Its totient is φ = 1271880000.

The previous prime is 3853818187. The next prime is 3853818239. The reversal of 3853818216 is 6128183583.

3853818216 is a `hidden beast` number, since 38 + 538 + 1 + 82 + 1 + 6 = 666.

3853818216 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 15 ways as a sum of consecutive naturals, for example, 66510 + ... + 110141.

It is an arithmetic number, because the mean of its divisors is an integer number (168923475).

Almost surely, 2^3853818216 is an apocalyptic number.

3853818216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3853818216 is an abundant number, since it is smaller than the sum of its proper divisors (6957284184).

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

3853818216 is a wasteful number, since it uses less digits than its factorization.

3853818216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176767 (or 176757 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 3853818216 is about 62079.1286665655. The cubic root of 3853818216 is about 1567.8231581157.

The spelling of 3853818216 in words is "three billion, eight hundred fifty-three million, eight hundred eighteen thousand, two hundred sixteen".