680201468917 has 2 divisors, whose sum is σ = 680201468918. Its totient is φ = 680201468916.

The previous prime is 680201468857. The next prime is 680201468923. The reversal of 680201468917 is 719864102086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 678636554436 + 1564914481 = 823794^2 + 39559^2 .

It is a cyclic number.

It is not a de Polignac number, because 680201468917 - 2¹⁹ = 680200944629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680201468987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340100734458 + 340100734459.

It is an arithmetic number, because the mean of its divisors is an integer number (340100734459).

Almost surely, 2^680201468917 is an apocalyptic number.

It is an amenable number.

680201468917 is a deficient number, since it is larger than the sum of its proper divisors (1).

680201468917 is an equidigital number, since it uses as much as digits as its factorization.

680201468917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 680201468917 in words is "six hundred eighty billion, two hundred one million, four hundred sixty-eight thousand, nine hundred seventeen".