688274375345 has 8 divisors (see below), whose sum is σ = 827375714880. Its totient is φ = 549655190640.

The previous prime is 688274375339. The next prime is 688274375359. The reversal of 688274375345 is 543573472886.

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

It is not a de Polignac number, because 688274375345 - 2¹⁰ = 688274374321 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120535565 + ... + 120541274.

It is an arithmetic number, because the mean of its divisors is an integer number (103421964360).

Almost surely, 2^688274375345 is an apocalyptic number.

It is an amenable number.

688274375345 is a deficient number, since it is larger than the sum of its proper divisors (139101339535).

688274375345 is a wasteful number, since it uses less digits than its factorization.

688274375345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241077415.

The product of its digits is 135475200, while the sum is 62.

The spelling of 688274375345 in words is "six hundred eighty-eight billion, two hundred seventy-four million, three hundred seventy-five thousand, three hundred forty-five".