686714452161 has 8 divisors (see below), whose sum is σ = 917733865440. Its totient is φ = 456752336832.

The previous prime is 686714452147. The next prime is 686714452163. The reversal of 686714452161 is 161254417686.

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

It is not a de Polignac number, because 686714452161 - 2⁷ = 686714452033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (686714452163) 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, 264322971 + ... + 264325568.

It is an arithmetic number, because the mean of its divisors is an integer number (114716733180).

Almost surely, 2^686714452161 is an apocalyptic number.

It is an amenable number.

686714452161 is a deficient number, since it is larger than the sum of its proper divisors (231019413279).

686714452161 is a wasteful number, since it uses less digits than its factorization.

686714452161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528648975.

The product of its digits is 1935360, while the sum is 51.

The spelling of 686714452161 in words is "six hundred eighty-six billion, seven hundred fourteen million, four hundred fifty-two thousand, one hundred sixty-one".