3866691760 has 20 divisors (see below), whose sum is σ = 8990058528. Its totient is φ = 1546676672.

The previous prime is 3866691733. The next prime is 3866691779. The reversal of 3866691760 is 671966683.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 3866691698 and 3866691707.

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, 24166744 + ... + 24166903.

Almost surely, 2^3866691760 is an apocalyptic number.

It is an amenable number.

3866691760 is an abundant number, since it is smaller than the sum of its proper divisors (5123366768).

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

3866691760 is a wasteful number, since it uses less digits than its factorization.

3866691760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48333660 (or 48333654 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 3866691760 is about 62182.7287918438. The cubic root of 3866691760 is about 1569.5669705178.

The spelling of 3866691760 in words is "three billion, eight hundred sixty-six million, six hundred ninety-one thousand, seven hundred sixty".