688023512308 has 12 divisors (see below), whose sum is σ = 1313499432672. Its totient is φ = 312737960120.

The previous prime is 688023512303. The next prime is 688023512311. The reversal of 688023512308 is 803215320886.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688023512303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7818448960 + ... + 7818449047.

It is an arithmetic number, because the mean of its divisors is an integer number (109458286056).

Almost surely, 2^688023512308 is an apocalyptic number.

It is an amenable number.

688023512308 is a deficient number, since it is larger than the sum of its proper divisors (625475920364).

688023512308 is a wasteful number, since it uses less digits than its factorization.

688023512308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15636898022 (or 15636898020 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 688023512308 in words is "six hundred eighty-eight billion, twenty-three million, five hundred twelve thousand, three hundred eight".