680343056243 has 8 divisors (see below), whose sum is σ = 726738133968. Its totient is φ = 634656300544.

The previous prime is 680343056227. The next prime is 680343056297. The reversal of 680343056243 is 342650343086.

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 680343056243 - 2⁴ = 680343056227 is a prime.

It is a super-2 number, since 2×680343056243² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 680343056194 and 680343056203.

It is not an unprimeable number, because it can be changed into a prime (680343056203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177078521 + ... + 177082362.

It is an arithmetic number, because the mean of its divisors is an integer number (90842266746).

Almost surely, 2^680343056243 is an apocalyptic number.

680343056243 is a deficient number, since it is larger than the sum of its proper divisors (46395077725).

680343056243 is a wasteful number, since it uses less digits than its factorization.

680343056243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354161013.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 680343056243 in words is "six hundred eighty billion, three hundred forty-three million, fifty-six thousand, two hundred forty-three".