3681658540 has 48 divisors (see below), whose sum is σ = 8900523072. Its totient is φ = 1253062656.

The previous prime is 3681658523. The next prime is 3681658559. The reversal of 3681658540 is 458561863.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76797 + ... + 115156.

It is an arithmetic number, because the mean of its divisors is an integer number (185427564).

Almost surely, 2^3681658540 is an apocalyptic number.

It is an amenable number.

3681658540 is an abundant number, since it is smaller than the sum of its proper divisors (5218864532).

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

3681658540 is a wasteful number, since it uses less digits than its factorization.

3681658540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192106 (or 192104 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 3681658540 is about 60676.6721236424. The cubic root of 3681658540 is about 1544.1204295220.

The spelling of 3681658540 in words is "three billion, six hundred eighty-one million, six hundred fifty-eight thousand, five hundred forty".