7871085768 has 192 divisors, whose sum is σ = 25635225600. Its totient is φ = 1966498560.

The previous prime is 7871085757. The next prime is 7871085791. The reversal of 7871085768 is 8675801787.

It is a Harshad number since it is a multiple of its sum of digits (57).

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 47 ways as a sum of consecutive naturals, for example, 532153 + ... + 546743.

It is an arithmetic number, because the mean of its divisors is an integer number (133516800).

Almost surely, 2^7871085768 is an apocalyptic number.

7871085768 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7871085768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12817612800).

7871085768 is an abundant number, since it is smaller than the sum of its proper divisors (17764139832).

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

7871085768 is a wasteful number, since it uses less digits than its factorization.

7871085768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14652 (or 14635 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 57.

The square root of 7871085768 is about 88719.1398064702. The cubic root of 7871085768 is about 1989.1989206836.

The spelling of 7871085768 in words is "seven billion, eight hundred seventy-one million, eighty-five thousand, seven hundred sixty-eight".