5686666865 has 8 divisors (see below), whose sum is σ = 7444363968. Its totient is φ = 4135757680.

The previous prime is 5686666861. The next prime is 5686666873.

5686666865 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5686666865 - 2² = 5686666861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5686666798 and 5686666807.

It is not an unprimeable number, because it can be changed into a prime (5686666861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51696917 + ... + 51697026.

It is an arithmetic number, because the mean of its divisors is an integer number (930545496).

Almost surely, 2^5686666865 is an apocalyptic number.

5686666865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5686666865 is a deficient number, since it is larger than the sum of its proper divisors (1757697103).

5686666865 is a wasteful number, since it uses less digits than its factorization.

5686666865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103393959.

The product of its digits is 74649600, while the sum is 62.

The square root of 5686666865 is about 75409.9918114304. The cubic root of 5686666865 is about 1784.9220820343.

The spelling of 5686666865 in words is "five billion, six hundred eighty-six million, six hundred sixty-six thousand, eight hundred sixty-five".