6871147866 has 120 divisors (see below), whose sum is σ = 17032831200. Its totient is φ = 2068711920.

The previous prime is 6871147763. The next prime is 6871147919. The reversal of 6871147866 is 6687411786.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3272485 + ... + 3274583.

It is an arithmetic number, because the mean of its divisors is an integer number (141940260).

Almost surely, 2^6871147866 is an apocalyptic number.

6871147866 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6871147866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8516415600).

6871147866 is an abundant number, since it is smaller than the sum of its proper divisors (10161683334).

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

6871147866 is a wasteful number, since it uses less digits than its factorization.

6871147866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302 (or 2282 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 6871147866 is about 82892.3872620399. The cubic root of 6871147866 is about 1901.1210250616.

The spelling of 6871147866 in words is "six billion, eight hundred seventy-one million, one hundred forty-seven thousand, eight hundred sixty-six".