3871949168 has 40 divisors (see below), whose sum is σ = 7833153408. Its totient is φ = 1850599872.

The previous prime is 3871949161. The next prime is 3871949173. The reversal of 3871949168 is 8619491783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871949161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861455 + ... + 865937.

Almost surely, 2^3871949168 is an apocalyptic number.

It is an amenable number.

3871949168 is an abundant number, since it is smaller than the sum of its proper divisors (3961204240).

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

3871949168 is a wasteful number, since it uses less digits than its factorization.

3871949168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6861 (or 6855 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 56.

The square root of 3871949168 is about 62224.9882924858. The cubic root of 3871949168 is about 1570.2780104593.

The spelling of 3871949168 in words is "three billion, eight hundred seventy-one million, nine hundred forty-nine thousand, one hundred sixty-eight".