6851807488 has 72 divisors (see below), whose sum is σ = 14251749120. Its totient is φ = 3283998720.

The previous prime is 6851807477. The next prime is 6851807549. The reversal of 6851807488 is 8847081586.

It is a happy number.

It is a super-2 number, since 2×6851807488² = 93894531705225740288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845118 + ... + 853186.

It is an arithmetic number, because the mean of its divisors is an integer number (197940960).

Almost surely, 2^6851807488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6851807488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7125874560).

6851807488 is an abundant number, since it is smaller than the sum of its proper divisors (7399941632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6851807488 is a wasteful number, since it uses less digits than its factorization.

6851807488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8223 (or 8209 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 55.

The square root of 6851807488 is about 82775.6455003523. The cubic root of 6851807488 is about 1899.3356391924.

The spelling of 6851807488 in words is "six billion, eight hundred fifty-one million, eight hundred seven thousand, four hundred eighty-eight".