7686878859 has 40 divisors (see below), whose sum is σ = 12611055600. Its totient is φ = 4627368000.

The previous prime is 7686878767. The next prime is 7686878867. The reversal of 7686878859 is 9588786867.

It is not a de Polignac number, because 7686878859 - 2²⁰ = 7685830283 is a prime.

It is a super-2 number, since 2×7686878859² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7686878879) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 103809 + ... + 161709.

It is an arithmetic number, because the mean of its divisors is an integer number (315276390).

Almost surely, 2^7686878859 is an apocalyptic number.

7686878859 is a deficient number, since it is larger than the sum of its proper divisors (4924176741).

7686878859 is a wasteful number, since it uses less digits than its factorization.

7686878859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58073 (or 58064 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 72.

The square root of 7686878859 is about 87674.8473565823. The cubic root of 7686878859 is about 1973.5585366389.

The spelling of 7686878859 in words is "seven billion, six hundred eighty-six million, eight hundred seventy-eight thousand, eight hundred fifty-nine".