680337652309 has 16 divisors (see below), whose sum is σ = 779401543680. Its totient is φ = 581743617840.

The previous prime is 680337652307. The next prime is 680337652333. The reversal of 680337652309 is 903256733086.

It is not a de Polignac number, because 680337652309 - 2¹ = 680337652307 is a prime.

It is a super-2 number, since 2×680337652309² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680337652307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4919502 + ... + 5055904.

It is an arithmetic number, because the mean of its divisors is an integer number (48712596480).

Almost surely, 2^680337652309 is an apocalyptic number.

It is an amenable number.

680337652309 is a deficient number, since it is larger than the sum of its proper divisors (99063891371).

680337652309 is a wasteful number, since it uses less digits than its factorization.

680337652309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138120.

The product of its (nonzero) digits is 4898880, while the sum is 52.

The spelling of 680337652309 in words is "six hundred eighty billion, three hundred thirty-seven million, six hundred fifty-two thousand, three hundred nine".