680546669 has 8 divisors (see below), whose sum is σ = 786086208. Its totient is φ = 582285760.

The previous prime is 680546663. The next prime is 680546677. The reversal of 680546669 is 966645086.

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 680546669 - 2⁴ = 680546653 is a prime.

It is a super-2 number, since 2×680546669² = 926287537373991122, which 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 (680546663) 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, 1819457 + ... + 1819830.

It is an arithmetic number, because the mean of its divisors is an integer number (98260776).

Almost surely, 2^680546669 is an apocalyptic number.

It is an amenable number.

680546669 is a deficient number, since it is larger than the sum of its proper divisors (105539539).

680546669 is a wasteful number, since it uses less digits than its factorization.

680546669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639315.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The square root of 680546669 is about 26087.2894145789. The cubic root of 680546669 is about 879.6015193983.

The spelling of 680546669 in words is "six hundred eighty million, five hundred forty-six thousand, six hundred sixty-nine".