3987166712 has 8 divisors (see below), whose sum is σ = 7475937600. Its totient is φ = 1993583352.

The previous prime is 3987166681. The next prime is 3987166741. The reversal of 3987166712 is 2176617893.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249197912 + ... + 249197927.

It is an arithmetic number, because the mean of its divisors is an integer number (934492200).

Almost surely, 2^3987166712 is an apocalyptic number.

It is an amenable number.

3987166712 is a deficient number, since it is larger than the sum of its proper divisors (3488770888).

3987166712 is a wasteful number, since it uses less digits than its factorization.

3987166712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498395845 (or 498395841 counting only the distinct ones).

The product of its digits is 762048, while the sum is 50.

The square root of 3987166712 is about 63144.0156467737. The cubic root of 3987166712 is about 1585.7016019701.

The spelling of 3987166712 in words is "three billion, nine hundred eighty-seven million, one hundred sixty-six thousand, seven hundred twelve".