6851355968 has 14 divisors (see below), whose sum is σ = 13595659626. Its totient is φ = 3425677952.

The previous prime is 6851355923. The next prime is 6851356019. The reversal of 6851355968 is 8695531586.

It can be written as a sum of positive squares in only one way, i.e., 5590253824 + 1261102144 = 74768^2 + 35512^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53526155 + ... + 53526282.

Almost surely, 2^6851355968 is an apocalyptic number.

It is an amenable number.

6851355968 is a deficient number, since it is larger than the sum of its proper divisors (6744303658).

6851355968 is a wasteful number, since it uses less digits than its factorization.

6851355968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107052449 (or 107052439 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 56.

The square root of 6851355968 is about 82772.9180831508. The cubic root of 6851355968 is about 1899.2939175072.

The spelling of 6851355968 in words is "six billion, eight hundred fifty-one million, three hundred fifty-five thousand, nine hundred sixty-eight".