680240375569 has 16 divisors (see below), whose sum is σ = 729288685440. Its totient is φ = 633042178560.

The previous prime is 680240375561. The next prime is 680240375579. The reversal of 680240375569 is 965573042086.

680240375569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 680240375569 - 2³ = 680240375561 is a prime.

It is a super-2 number, since 2×680240375569² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680240375561) 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, 2452302 + ... + 2715559.

It is an arithmetic number, because the mean of its divisors is an integer number (45580542840).

Almost surely, 2^680240375569 is an apocalyptic number.

It is an amenable number.

680240375569 is a deficient number, since it is larger than the sum of its proper divisors (49048309871).

680240375569 is a wasteful number, since it uses less digits than its factorization.

680240375569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5168040.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 680240375569 in words is "six hundred eighty billion, two hundred forty million, three hundred seventy-five thousand, five hundred sixty-nine".