3648786986 has 32 divisors (see below), whose sum is σ = 6170121216. Its totient is φ = 1606752000.

The previous prime is 3648786979. The next prime is 3648787001. The reversal of 3648786986 is 6896878463.

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, 25346 + ... + 89106.

It is an arithmetic number, because the mean of its divisors is an integer number (192816288).

Almost surely, 2^3648786986 is an apocalyptic number.

3648786986 is a deficient number, since it is larger than the sum of its proper divisors (2521334230).

3648786986 is a wasteful number, since it uses less digits than its factorization.

3648786986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63878.

The product of its digits is 83607552, while the sum is 65.

The square root of 3648786986 is about 60405.1900584710. The cubic root of 3648786986 is about 1539.5111432542.

The spelling of 3648786986 in words is "three billion, six hundred forty-eight million, seven hundred eighty-six thousand, nine hundred eighty-six".