680973818077 has 16 divisors (see below), whose sum is σ = 781076908800. Its totient is φ = 581578732800.

The previous prime is 680973818071. The next prime is 680973818081. The reversal of 680973818077 is 770818379086.

It is a cyclic number.

It is not a de Polignac number, because 680973818077 - 2³⁹ = 131218004189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680973818071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2905299 + ... + 3130927.

It is an arithmetic number, because the mean of its divisors is an integer number (48817306800).

Almost surely, 2^680973818077 is an apocalyptic number.

It is an amenable number.

680973818077 is a deficient number, since it is larger than the sum of its proper divisors (100103090723).

680973818077 is a wasteful number, since it uses less digits than its factorization.

680973818077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227196.

The product of its (nonzero) digits is 28449792, while the sum is 64.

The spelling of 680973818077 in words is "six hundred eighty billion, nine hundred seventy-three million, eight hundred eighteen thousand, seventy-seven".