680663085619 has 8 divisors (see below), whose sum is σ = 746833697712. Its totient is φ = 615207831840.

The previous prime is 680663085581. The next prime is 680663085649. The reversal of 680663085619 is 916580366086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 680663085619 - 2¹¹ = 680663083571 is a prime.

It is a super-2 number, since 2×680663085619² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680663085649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178837584 + ... + 178841389.

It is an arithmetic number, because the mean of its divisors is an integer number (93354212214).

Almost surely, 2^680663085619 is an apocalyptic number.

680663085619 is a deficient number, since it is larger than the sum of its proper divisors (66170612093).

680663085619 is a wasteful number, since it uses less digits than its factorization.

680663085619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357679157.

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 680663085619 in words is "six hundred eighty billion, six hundred sixty-three million, eighty-five thousand, six hundred nineteen".