3786606664 has 8 divisors (see below), whose sum is σ = 7099887510. Its totient is φ = 1893303328.

The previous prime is 3786606623. The next prime is 3786606667. The reversal of 3786606664 is 4666066873.

It can be written as a sum of positive squares in only one way, i.e., 2301120900 + 1485485764 = 47970^2 + 38542^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3786606667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236662909 + ... + 236662924.

Almost surely, 2^3786606664 is an apocalyptic number.

It is an amenable number.

3786606664 is a deficient number, since it is larger than the sum of its proper divisors (3313280846).

3786606664 is a wasteful number, since it uses less digits than its factorization.

3786606664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473325839 (or 473325835 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 52.

The square root of 3786606664 is about 61535.4098385637. The cubic root of 3786606664 is about 1558.6552437079.

The spelling of 3786606664 in words is "three billion, seven hundred eighty-six million, six hundred six thousand, six hundred sixty-four".