6491916796 has 24 divisors (see below), whose sum is σ = 11857910400. Its totient is φ = 3104016432.

The previous prime is 6491916793. The next prime is 6491916797. The reversal of 6491916796 is 6976191946.

It is a self number, because there is not a number n which added to its sum of digits gives 6491916796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6491916793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489055 + ... + 502153.

It is an arithmetic number, because the mean of its divisors is an integer number (494079600).

Almost surely, 2^6491916796 is an apocalyptic number.

It is an amenable number.

6491916796 is a deficient number, since it is larger than the sum of its proper divisors (5365993604).

6491916796 is a wasteful number, since it uses less digits than its factorization.

6491916796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18513 (or 18511 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 58.

The square root of 6491916796 is about 80572.4319851399. The cubic root of 6491916796 is about 1865.4816511215.

The spelling of 6491916796 in words is "six billion, four hundred ninety-one million, nine hundred sixteen thousand, seven hundred ninety-six".