3649675986 has 24 divisors (see below), whose sum is σ = 8626507344. Its totient is φ = 1105962360.

The previous prime is 3649675979. The next prime is 3649676011. The reversal of 3649675986 is 6895769463.

3649675986 is a `hidden beast` number, since 36 + 4 + 9 + 6 + 7 + 598 + 6 = 666.

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, 9216156 + ... + 9216551.

It is an arithmetic number, because the mean of its divisors is an integer number (359437806).

Almost surely, 2^3649675986 is an apocalyptic number.

3649675986 is an abundant number, since it is smaller than the sum of its proper divisors (4976831358).

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

3649675986 is a wasteful number, since it uses less digits than its factorization.

3649675986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18432726 (or 18432723 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The square root of 3649675986 is about 60412.5482495152. The cubic root of 3649675986 is about 1539.6361632745.

The spelling of 3649675986 in words is "three billion, six hundred forty-nine million, six hundred seventy-five thousand, nine hundred eighty-six".