688813412684 has 6 divisors (see below), whose sum is σ = 1205423472204. Its totient is φ = 344406706340.

The previous prime is 688813412669. The next prime is 688813412689. The reversal of 688813412684 is 486214318886.

It is not an unprimeable number, because it can be changed into a prime (688813412689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86101676582 + ... + 86101676589.

It is an arithmetic number, because the mean of its divisors is an integer number (200903912034).

Almost surely, 2^688813412684 is an apocalyptic number.

It is an amenable number.

688813412684 is a deficient number, since it is larger than the sum of its proper divisors (516610059520).

688813412684 is a wasteful number, since it uses less digits than its factorization.

688813412684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172203353175 (or 172203353173 counting only the distinct ones).

The product of its digits is 14155776, while the sum is 59.

The spelling of 688813412684 in words is "six hundred eighty-eight billion, eight hundred thirteen million, four hundred twelve thousand, six hundred eighty-four".