3654378612 has 48 divisors (see below), whose sum is σ = 9566327680. Its totient is φ = 1206296064.

The previous prime is 3654378589. The next prime is 3654378641. The reversal of 3654378612 is 2168734563.

3654378612 is a `hidden beast` number, since 36 + 543 + 78 + 6 + 1 + 2 = 666.

3654378612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 153133 + ... + 175380.

Almost surely, 2^3654378612 is an apocalyptic number.

It is an amenable number.

3654378612 is an abundant number, since it is smaller than the sum of its proper divisors (5911949068).

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

3654378612 is a wasteful number, since it uses less digits than its factorization.

3654378612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328629 (or 328621 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 3654378612 is about 60451.4566573875. The cubic root of 3654378612 is about 1540.2971557908.

The spelling of 3654378612 in words is "three billion, six hundred fifty-four million, three hundred seventy-eight thousand, six hundred twelve".