6351816916 has 6 divisors (see below), whose sum is σ = 11115679610. Its totient is φ = 3175908456.

The previous prime is 6351816829. The next prime is 6351816917. The reversal of 6351816916 is 6196181536.

It can be written as a sum of positive squares in only one way, i.e., 3473923600 + 2877893316 = 58940^2 + 53646^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6351816917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 793977111 + ... + 793977118.

Almost surely, 2^6351816916 is an apocalyptic number.

It is an amenable number.

6351816916 is a deficient number, since it is larger than the sum of its proper divisors (4763862694).

6351816916 is a wasteful number, since it uses less digits than its factorization.

6351816916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587954233 (or 1587954231 counting only the distinct ones).

The product of its digits is 233280, while the sum is 46.

The square root of 6351816916 is about 79698.2867820884. The cubic root of 6351816916 is about 1851.9644986174.

The spelling of 6351816916 in words is "six billion, three hundred fifty-one million, eight hundred sixteen thousand, nine hundred sixteen".