4186786816 has 22 divisors (see below), whose sum is σ = 8369487020. Its totient is φ = 2093392896.

The previous prime is 4186786801. The next prime is 4186786817. The reversal of 4186786816 is 6186876814.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4186786817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2043306 + ... + 2045353.

Almost surely, 2^4186786816 is an apocalyptic number.

It is an amenable number.

4186786816 is a deficient number, since it is larger than the sum of its proper divisors (4182700204).

4186786816 is an equidigital number, since it uses as much as digits as its factorization.

4186786816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088679 (or 4088661 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 55.

The square root of 4186786816 is about 64705.3847527391. The cubic root of 4186786816 is about 1611.7349218396.

The spelling of 4186786816 in words is "four billion, one hundred eighty-six million, seven hundred eighty-six thousand, eight hundred sixteen".