3871851312 has 80 divisors (see below), whose sum is σ = 12032840960. Its totient is φ = 1048018176.

The previous prime is 3871851311. The next prime is 3871851329. The reversal of 3871851312 is 2131581783.

3871851312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3871851312² = 29982465164472242688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3871851311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296863 + ... + 309630.

It is an arithmetic number, because the mean of its divisors is an integer number (150410512).

Almost surely, 2^3871851312 is an apocalyptic number.

It is an amenable number.

3871851312 is an abundant number, since it is smaller than the sum of its proper divisors (8160989648).

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

3871851312 is a wasteful number, since it uses less digits than its factorization.

3871851312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606530 (or 606524 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 3871851312 is about 62224.2019796156. The cubic root of 3871851312 is about 1570.2647817716.

The spelling of 3871851312 in words is "three billion, eight hundred seventy-one million, eight hundred fifty-one thousand, three hundred twelve".