3856206312 has 512 divisors, whose sum is σ = 13639680000. Its totient is φ = 1005903360.

The previous prime is 3856206307. The next prime is 3856206337. The reversal of 3856206312 is 2136026583.

It is a happy number.

3856206312 is a `hidden beast` number, since 38 + 562 + 0 + 63 + 1 + 2 = 666.

3856206312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 52824708 + ... + 52824780.

It is an arithmetic number, because the mean of its divisors is an integer number (26640000).

Almost surely, 2^3856206312 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 3856206312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6819840000).

3856206312 is an abundant number, since it is smaller than the sum of its proper divisors (9783473688).

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

3856206312 is a wasteful number, since it uses less digits than its factorization.

3856206312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 3856206312 is about 62098.3599783440. The cubic root of 3856206312 is about 1568.1469356351.

The spelling of 3856206312 in words is "three billion, eight hundred fifty-six million, two hundred six thousand, three hundred twelve".