3871810916 has 6 divisors (see below), whose sum is σ = 6775669110. Its totient is φ = 1935905456.

The previous prime is 3871810913. The next prime is 3871810931. The reversal of 3871810916 is 6190181783.

3871810916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3283748416 + 588062500 = 57304^2 + 24250^2 .

It is not an unprimeable number, because it can be changed into a prime (3871810913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483976361 + ... + 483976368.

It is an arithmetic number, because the mean of its divisors is an integer number (1129278185).

Almost surely, 2^3871810916 is an apocalyptic number.

It is an amenable number.

3871810916 is a deficient number, since it is larger than the sum of its proper divisors (2903858194).

3871810916 is a wasteful number, since it uses less digits than its factorization.

3871810916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967952733 (or 967952731 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 3871810916 is about 62223.8773783826. The cubic root of 3871810916 is about 1570.2593207632.

The spelling of 3871810916 in words is "three billion, eight hundred seventy-one million, eight hundred ten thousand, nine hundred sixteen".