3984463687671 has 32 divisors (see below), whose sum is σ = 5985855532800. Its totient is φ = 2619241578720.

The previous prime is 3984463687643. The next prime is 3984463687703. The reversal of 3984463687671 is 1767863644893.

3984463687671 is a `hidden beast` number, since 3 + 9 + 8 + 446 + 36 + 87 + 6 + 71 = 666.

It is not a de Polignac number, because 3984463687671 - 2⁷ = 3984463687543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3984463687671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984463687271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3032301 + ... + 4142918.

It is an arithmetic number, because the mean of its divisors is an integer number (187057985400).

Almost surely, 2^{3984463687671} is an apocalyptic number.

3984463687671 is a deficient number, since it is larger than the sum of its proper divisors (2001391845129).

3984463687671 is a wasteful number, since it uses less digits than its factorization.

3984463687671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7175516 (or 7175510 counting only the distinct ones).

The product of its digits is 877879296, while the sum is 72.

The spelling of 3984463687671 in words is "three trillion, nine hundred eighty-four billion, four hundred sixty-three million, six hundred eighty-seven thousand, six hundred seventy-one".