688328642203 has 2 divisors, whose sum is σ = 688328642204. Its totient is φ = 688328642202.

The previous prime is 688328642201. The next prime is 688328642213. The reversal of 688328642203 is 302246823886.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 688328642203 - 2¹ = 688328642201 is a prime.

Together with 688328642201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (688328642201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344164321101 + 344164321102.

It is an arithmetic number, because the mean of its divisors is an integer number (344164321102).

Almost surely, 2^688328642203 is an apocalyptic number.

688328642203 is a deficient number, since it is larger than the sum of its proper divisors (1).

688328642203 is an equidigital number, since it uses as much as digits as its factorization.

688328642203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5308416, while the sum is 52.

The spelling of 688328642203 in words is "six hundred eighty-eight billion, three hundred twenty-eight million, six hundred forty-two thousand, two hundred three".