6865716628 has 12 divisors (see below), whose sum is σ = 12721769172. Its totient is φ = 3230925440.

The previous prime is 6865716601. The next prime is 6865716667. The reversal of 6865716628 is 8266175686.

It can be written as a sum of positive squares in 2 ways, for example, as 6312620304 + 553096324 = 79452^2 + 23518^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50483143 + ... + 50483278.

It is an arithmetic number, because the mean of its divisors is an integer number (1060147431).

Almost surely, 2^6865716628 is an apocalyptic number.

6865716628 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6865716628 is a deficient number, since it is larger than the sum of its proper divisors (5856052544).

6865716628 is a wasteful number, since it uses less digits than its factorization.

6865716628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100966442 (or 100966440 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The square root of 6865716628 is about 82859.6200087835. The cubic root of 6865716628 is about 1900.6199849297.

The spelling of 6865716628 in words is "six billion, eight hundred sixty-five million, seven hundred sixteen thousand, six hundred twenty-eight".