686672276686 has 32 divisors (see below), whose sum is σ = 1126392819552. Its totient is φ = 311361576960.

The previous prime is 686672276683. The next prime is 686672276687.

686672276686 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×686672276686³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686672276683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15003790 + ... + 15049486.

It is an arithmetic number, because the mean of its divisors is an integer number (35199775611).

Almost surely, 2^686672276686 is an apocalyptic number.

686672276686 is a deficient number, since it is larger than the sum of its proper divisors (439720542866).

686672276686 is a wasteful number, since it uses less digits than its factorization.

686672276686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47364.

The product of its digits is 585252864, while the sum is 70.

The spelling of 686672276686 in words is "six hundred eighty-six billion, six hundred seventy-two million, two hundred seventy-six thousand, six hundred eighty-six".