3861690564 has 12 divisors (see below), whose sum is σ = 9010611344. Its totient is φ = 1287230184.

The previous prime is 3861690557. The next prime is 3861690601. The reversal of 3861690564 is 4650961683.

It is a tau number, because it is divible by the number of its divisors (12).

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, 160903762 + ... + 160903785.

Almost surely, 2^3861690564 is an apocalyptic number.

It is an amenable number.

3861690564 is an abundant number, since it is smaller than the sum of its proper divisors (5148920780).

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

3861690564 is a wasteful number, since it uses less digits than its factorization.

3861690564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321807554 (or 321807552 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 3861690564 is about 62142.5020738625. The cubic root of 3861690564 is about 1568.8899836377.

The spelling of 3861690564 in words is "three billion, eight hundred sixty-one million, six hundred ninety thousand, five hundred sixty-four".