3681045684 has 36 divisors (see below), whose sum is σ = 9416979936. Its totient is φ = 1212230928.

The previous prime is 3681045673. The next prime is 3681045737. The reversal of 3681045684 is 4865401863.

3681045684 is a `hidden beast` number, since 3 + 6 + 81 + 0 + 4 + 568 + 4 = 666.

3681045684 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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, 612984 + ... + 618959.

It is an arithmetic number, because the mean of its divisors is an integer number (261582776).

Almost surely, 2^3681045684 is an apocalyptic number.

It is an amenable number.

3681045684 is an abundant number, since it is smaller than the sum of its proper divisors (5735934252).

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

3681045684 is a wasteful number, since it uses less digits than its factorization.

3681045684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232036 (or 1232031 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 3681045684 is about 60671.6217353715. The cubic root of 3681045684 is about 1544.0347456766.

The spelling of 3681045684 in words is "three billion, six hundred eighty-one million, forty-five thousand, six hundred eighty-four".