680287982453 has 2 divisors, whose sum is σ = 680287982454. Its totient is φ = 680287982452.

The previous prime is 680287982417. The next prime is 680287982461. The reversal of 680287982453 is 354289782086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424194295204 + 256093687249 = 651302^2 + 506057^2 .

It is a cyclic number.

It is not a de Polignac number, because 680287982453 - 2¹⁸ = 680287720309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (680287982953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340143991226 + 340143991227.

It is an arithmetic number, because the mean of its divisors is an integer number (340143991227).

Almost surely, 2^680287982453 is an apocalyptic number.

It is an amenable number.

680287982453 is a deficient number, since it is larger than the sum of its proper divisors (1).

680287982453 is an equidigital number, since it uses as much as digits as its factorization.

680287982453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 680287982453 in words is "six hundred eighty billion, two hundred eighty-seven million, nine hundred eighty-two thousand, four hundred fifty-three".