686901006869 has 8 divisors (see below), whose sum is σ = 856396060608. Its totient is φ = 535247537760.

The previous prime is 686901006859. The next prime is 686901006881. The reversal of 686901006869 is 968600109686.

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

It is a cyclic number.

It is not a de Polignac number, because 686901006869 - 2⁴ = 686901006853 is a prime.

It is a super-2 number, since 2×686901006869² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686901006829) 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, 4460396072 + ... + 4460396225.

It is an arithmetic number, because the mean of its divisors is an integer number (107049507576).

Almost surely, 2^686901006869 is an apocalyptic number.

It is an amenable number.

686901006869 is a deficient number, since it is larger than the sum of its proper divisors (169495053739).

686901006869 is a wasteful number, since it uses less digits than its factorization.

686901006869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8920792315.

The product of its (nonzero) digits is 6718464, while the sum is 59.

The spelling of 686901006869 in words is "six hundred eighty-six billion, nine hundred one million, six thousand, eight hundred sixty-nine".