680208610 has 8 divisors (see below), whose sum is σ = 1224375516. Its totient is φ = 272083440.

The previous prime is 680208563. The next prime is 680208611. The reversal of 680208610 is 16802086.

It can be written as a sum of positive squares in 2 ways, for example, as 663011001 + 17197609 = 25749^2 + 4147^2 .

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

It is not an unprimeable number, because it can be changed into a prime (680208611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34010421 + ... + 34010440.

Almost surely, 2^680208610 is an apocalyptic number.

680208610 is a deficient number, since it is larger than the sum of its proper divisors (544166906).

680208610 is a wasteful number, since it uses less digits than its factorization.

680208610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68020868.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 680208610 is about 26080.8092282429. The cubic root of 680208610 is about 879.4558490256.

The spelling of 680208610 in words is "six hundred eighty million, two hundred eight thousand, six hundred ten".