3681658608 has 20 divisors (see below), whose sum is σ = 9510951528. Its totient is φ = 1227219520.

The previous prime is 3681658597. The next prime is 3681658613. The reversal of 3681658608 is 8068561863.

It is a super-2 number, since 2×3681658608² = 27109220211720995328, which contains 22 as substring.

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, 38350563 + ... + 38350658.

Almost surely, 2^3681658608 is an apocalyptic number.

It is an amenable number.

3681658608 is an abundant number, since it is smaller than the sum of its proper divisors (5829292920).

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

3681658608 is a wasteful number, since it uses less digits than its factorization.

3681658608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76701232 (or 76701226 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 3681658608 is about 60676.6726839895. The cubic root of 3681658608 is about 1544.1204390286.

The spelling of 3681658608 in words is "three billion, six hundred eighty-one million, six hundred fifty-eight thousand, six hundred eight".