686424006064 has 20 divisors (see below), whose sum is σ = 1334485587456. Its totient is φ = 342040628672.

The previous prime is 686424006061. The next prime is 686424006067. The reversal of 686424006064 is 460600424686.

It is an interprime number because it is at equal distance from previous prime (686424006061) and next prime (686424006067).

It is a super-2 number, since 2×686424006064² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (686424006061) 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, 73206064 + ... + 73215439.

Almost surely, 2^686424006064 is an apocalyptic number.

It is an amenable number.

686424006064 is a deficient number, since it is larger than the sum of its proper divisors (648061581392).

686424006064 is a wasteful number, since it uses less digits than its factorization.

686424006064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146421804 (or 146421798 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 46.

The spelling of 686424006064 in words is "six hundred eighty-six billion, four hundred twenty-four million, six thousand, sixty-four".