680373727573 has 2 divisors, whose sum is σ = 680373727574. Its totient is φ = 680373727572.

The previous prime is 680373727459. The next prime is 680373727639. The reversal of 680373727573 is 375727373086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 675720168484 + 4653559089 = 822022^2 + 68217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-680373727573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680373757573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340186863786 + 340186863787.

It is an arithmetic number, because the mean of its divisors is an integer number (340186863787).

Almost surely, 2^680373727573 is an apocalyptic number.

It is an amenable number.

680373727573 is a deficient number, since it is larger than the sum of its proper divisors (1).

680373727573 is an equidigital number, since it uses as much as digits as its factorization.

680373727573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31116960, while the sum is 58.

The spelling of 680373727573 in words is "six hundred eighty billion, three hundred seventy-three million, seven hundred twenty-seven thousand, five hundred seventy-three".