3681583686 has 24 divisors (see below), whose sum is σ = 8701925544. Its totient is φ = 1115631360.

The previous prime is 3681583667. The next prime is 3681583723. The reversal of 3681583686 is 6863851863.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9296731 + ... + 9297126.

It is an arithmetic number, because the mean of its divisors is an integer number (362580231).

Almost surely, 2^3681583686 is an apocalyptic number.

3681583686 is an abundant number, since it is smaller than the sum of its proper divisors (5020341858).

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

3681583686 is a wasteful number, since it uses less digits than its factorization.

3681583686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18593876 (or 18593873 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 3681583686 is about 60676.0552936659. The cubic root of 3681583686 is about 1544.1099646394.

The spelling of 3681583686 in words is "three billion, six hundred eighty-one million, five hundred eighty-three thousand, six hundred eighty-six".