680094296281 has 2 divisors, whose sum is σ = 680094296282. Its totient is φ = 680094296280.

The previous prime is 680094296269. The next prime is 680094296291. The reversal of 680094296281 is 182692490086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360349284681 + 319745011600 = 600291^2 + 565460^2 .

It is a cyclic number.

It is not a de Polignac number, because 680094296281 - 2⁷ = 680094296153 is a prime.

It is a super-2 number, since 2×680094296281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (680094296251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340047148140 + 340047148141.

It is an arithmetic number, because the mean of its divisors is an integer number (340047148141).

Almost surely, 2^680094296281 is an apocalyptic number.

It is an amenable number.

680094296281 is a deficient number, since it is larger than the sum of its proper divisors (1).

680094296281 is an equidigital number, since it uses as much as digits as its factorization.

680094296281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 680094296281 in words is "six hundred eighty billion, ninety-four million, two hundred ninety-six thousand, two hundred eighty-one".