3986428921166 has 8 divisors (see below), whose sum is σ = 6092466841944. Its totient is φ = 1955606640520.

The previous prime is 3986428921157. The next prime is 3986428921229. The reversal of 3986428921166 is 6611298246893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18803909900 + ... + 18803910111.

It is an arithmetic number, because the mean of its divisors is an integer number (761558355243).

Almost surely, 2^{3986428921166} is an apocalyptic number.

3986428921166 is a deficient number, since it is larger than the sum of its proper divisors (2106037920778).

3986428921166 is a wasteful number, since it uses less digits than its factorization.

3986428921166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37607820066.

The product of its digits is 53747712, while the sum is 65.

The spelling of 3986428921166 in words is "three trillion, nine hundred eighty-six billion, four hundred twenty-eight million, nine hundred twenty-one thousand, one hundred sixty-six".