680048819 has 2 divisors, whose sum is σ = 680048820. Its totient is φ = 680048818.

The previous prime is 680048771. The next prime is 680048821. The reversal of 680048819 is 918840086.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 680048819 - 2⁸ = 680048563 is a prime.

It is a super-2 number, since 2×680048819² = 924932792446589522, which contains 22 as substring.

Together with 680048821, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 680048819.

It is not a weakly prime, because it can be changed into another prime (680048839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340024409 + 340024410.

It is an arithmetic number, because the mean of its divisors is an integer number (340024410).

Almost surely, 2^680048819 is an apocalyptic number.

680048819 is a deficient number, since it is larger than the sum of its proper divisors (1).

680048819 is an equidigital number, since it uses as much as digits as its factorization.

680048819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 680048819 is about 26077.7456656054. The cubic root of 680048819 is about 879.3869779308.

The spelling of 680048819 in words is "six hundred eighty million, forty-eight thousand, eight hundred nineteen".