3876669666 has 48 divisors (see below), whose sum is σ = 8685139680. Its totient is φ = 1281760200.

The previous prime is 3876669653. The next prime is 3876669673. The reversal of 3876669666 is 6669666783.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 868741 + ... + 873191.

It is an arithmetic number, because the mean of its divisors is an integer number (180940410).

Almost surely, 2^3876669666 is an apocalyptic number.

3876669666 is an abundant number, since it is smaller than the sum of its proper divisors (4808470014).

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

3876669666 is a wasteful number, since it uses less digits than its factorization.

3876669666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4716 (or 4583 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 63.

The square root of 3876669666 is about 62262.9076256482. The cubic root of 3876669666 is about 1570.9158876286.

The spelling of 3876669666 in words is "three billion, eight hundred seventy-six million, six hundred sixty-nine thousand, six hundred sixty-six".