6320781916 has 12 divisors (see below), whose sum is σ = 11062155832. Its totient is φ = 3160165968.

The previous prime is 6320781911. The next prime is 6320781931. The reversal of 6320781916 is 6191870236.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6320781911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17791 + ... + 113833.

Almost surely, 2^6320781916 is an apocalyptic number.

It is an amenable number.

6320781916 is a deficient number, since it is larger than the sum of its proper divisors (4741373916).

6320781916 is a wasteful number, since it uses less digits than its factorization.

6320781916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112500 (or 112498 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 6320781916 is about 79503.3453132634. The cubic root of 6320781916 is about 1848.9433377560.

The spelling of 6320781916 in words is "six billion, three hundred twenty million, seven hundred eighty-one thousand, nine hundred sixteen".