6847690868 has 12 divisors (see below), whose sum is σ = 12093399780. Its totient is φ = 3392433792.

The previous prime is 6847690867. The next prime is 6847690907. The reversal of 6847690868 is 8680967486.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5073427984 + 1774262884 = 71228^2 + 42122^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6847690868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6847690867) 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, 7852421 + ... + 7853292.

It is an arithmetic number, because the mean of its divisors is an integer number (1007783315).

Almost surely, 2^6847690868 is an apocalyptic number.

It is an amenable number.

6847690868 is a deficient number, since it is larger than the sum of its proper divisors (5245708912).

6847690868 is a wasteful number, since it uses less digits than its factorization.

6847690868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15705826 (or 15705824 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 62.

The square root of 6847690868 is about 82750.7756338271. The cubic root of 6847690868 is about 1898.9551843762.

The spelling of 6847690868 in words is "six billion, eight hundred forty-seven million, six hundred ninety thousand, eight hundred sixty-eight".