680205261350 has 24 divisors (see below), whose sum is σ = 1265213652840. Its totient is φ = 272075251520.

The previous prime is 680205261313. The next prime is 680205261409. The reversal of 680205261350 is 53162502086.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2143241 + ... + 2440059.

It is an arithmetic number, because the mean of its divisors is an integer number (52717235535).

Almost surely, 2^680205261350 is an apocalyptic number.

680205261350 is a deficient number, since it is larger than the sum of its proper divisors (585008391490).

680205261350 is a wasteful number, since it uses less digits than its factorization.

680205261350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342664 (or 342659 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 680205261350 in words is "six hundred eighty billion, two hundred five million, two hundred sixty-one thousand, three hundred fifty".