688344263423 has 4 divisors (see below), whose sum is σ = 696078468720. Its totient is φ = 680610058128.

The previous prime is 688344263359. The next prime is 688344263471. The reversal of 688344263423 is 324362443886.

688344263423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 688344263423 - 2⁶ = 688344263359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688344269423) 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, 3867102515 + ... + 3867102692.

It is an arithmetic number, because the mean of its divisors is an integer number (174019617180).

Almost surely, 2^688344263423 is an apocalyptic number.

688344263423 is a deficient number, since it is larger than the sum of its proper divisors (7734205297).

688344263423 is an equidigital number, since it uses as much as digits as its factorization.

688344263423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734205296.

The product of its digits is 15925248, while the sum is 53.

The spelling of 688344263423 in words is "six hundred eighty-eight billion, three hundred forty-four million, two hundred sixty-three thousand, four hundred twenty-three".