680311999 has 8 divisors (see below), whose sum is σ = 683076240. Its totient is φ = 677554176.

The previous prime is 680311993. The next prime is 680312021. The reversal of 680311999 is 999113086.

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 680311999 - 2¹¹ = 680309951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680311993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339669 + ... + 341665.

It is an arithmetic number, because the mean of its divisors is an integer number (85384530).

Almost surely, 2^680311999 is an apocalyptic number.

680311999 is a deficient number, since it is larger than the sum of its proper divisors (2764241).

680311999 is a wasteful number, since it uses less digits than its factorization.

680311999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 680311999 is about 26082.7912425032. The cubic root of 680311999 is about 879.5004046973.

The spelling of 680311999 in words is "six hundred eighty million, three hundred eleven thousand, nine hundred ninety-nine".