686440116910 has 8 divisors (see below), whose sum is σ = 1235592210456. Its totient is φ = 274576046760.

The previous prime is 686440116899. The next prime is 686440116913. The reversal of 686440116910 is 19611044686.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686440116913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34322005836 + ... + 34322005855.

It is an arithmetic number, because the mean of its divisors is an integer number (154449026307).

Almost surely, 2^686440116910 is an apocalyptic number.

686440116910 is a deficient number, since it is larger than the sum of its proper divisors (549152093546).

686440116910 is a wasteful number, since it uses less digits than its factorization.

686440116910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68644011698.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 686440116910 in words is "six hundred eighty-six billion, four hundred forty million, one hundred sixteen thousand, nine hundred ten".