1863706216 has 16 divisors (see below), whose sum is σ = 3500411040. Its totient is φ = 930263280.

The previous prime is 1863706183. The next prime is 1863706217. The reversal of 1863706216 is 6126073681.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1863706217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193740 + ... + 203131.

It is an arithmetic number, because the mean of its divisors is an integer number (218775690).

Almost surely, 2^1863706216 is an apocalyptic number.

It is an amenable number.

1863706216 is a deficient number, since it is larger than the sum of its proper divisors (1636704824).

1863706216 is a wasteful number, since it uses less digits than its factorization.

1863706216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397464 (or 397460 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1863706216 is about 43170.6638355261. The cubic root of 1863706216 is about 1230.6252392195.

Adding to 1863706216 its reverse (6126073681), we get a palindrome (7989779897).

The spelling of 1863706216 in words is "one billion, eight hundred sixty-three million, seven hundred six thousand, two hundred sixteen".