686551675 has 12 divisors (see below), whose sum is σ = 851664240. Its totient is φ = 549021920.

The previous prime is 686551667. The next prime is 686551693. The reversal of 686551675 is 576155686.

It is not a de Polignac number, because 686551675 - 2³ = 686551667 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93021 + ... + 100129.

It is an arithmetic number, because the mean of its divisors is an integer number (70972020).

Almost surely, 2^686551675 is an apocalyptic number.

686551675 is a deficient number, since it is larger than the sum of its proper divisors (165112565).

686551675 is a wasteful number, since it uses less digits than its factorization.

686551675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10982 (or 10977 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 49.

The square root of 686551675 is about 26202.1311156173. The cubic root of 686551675 is about 882.1810889081.

The spelling of 686551675 in words is "six hundred eighty-six million, five hundred fifty-one thousand, six hundred seventy-five".