688868030141 has 2 divisors, whose sum is σ = 688868030142. Its totient is φ = 688868030140.

The previous prime is 688868030119. The next prime is 688868030167. The reversal of 688868030141 is 141030868886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430342560025 + 258525470116 = 656005^2 + 508454^2 .

It is a cyclic number.

It is not a de Polignac number, because 688868030141 - 2³⁰ = 687794288317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (688868000141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344434015070 + 344434015071.

It is an arithmetic number, because the mean of its divisors is an integer number (344434015071).

Almost surely, 2^688868030141 is an apocalyptic number.

It is an amenable number.

688868030141 is a deficient number, since it is larger than the sum of its proper divisors (1).

688868030141 is an equidigital number, since it uses as much as digits as its factorization.

688868030141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1769472, while the sum is 53.

The spelling of 688868030141 in words is "six hundred eighty-eight billion, eight hundred sixty-eight million, thirty thousand, one hundred forty-one".