688824068086 has 32 divisors (see below), whose sum is σ = 1288237489920. Its totient is φ = 268363216800.

The previous prime is 688824068077. The next prime is 688824068089. The reversal of 688824068086 is 680860428886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688824068089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5297896 + ... + 5426356.

It is an arithmetic number, because the mean of its divisors is an integer number (40257421560).

Almost surely, 2^688824068086 is an apocalyptic number.

688824068086 is a deficient number, since it is larger than the sum of its proper divisors (599413421834).

688824068086 is a wasteful number, since it uses less digits than its factorization.

688824068086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163300.

The product of its (nonzero) digits is 56623104, while the sum is 64.

The spelling of 688824068086 in words is "six hundred eighty-eight billion, eight hundred twenty-four million, sixty-eight thousand, eighty-six".