680713548781 has 8 divisors (see below), whose sum is σ = 784083998720. Its totient is φ = 578874513168.

The previous prime is 680713548689. The next prime is 680713548799. The reversal of 680713548781 is 187845317086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680713548781 - 2¹⁵ = 680713516013 is a prime.

It is a super-2 number, since 2×680713548781² (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 (680713546781) 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, 382852626 + ... + 382854403.

It is an arithmetic number, because the mean of its divisors is an integer number (98010499840).

Almost surely, 2^680713548781 is an apocalyptic number.

It is an amenable number.

680713548781 is a deficient number, since it is larger than the sum of its proper divisors (103370449939).

680713548781 is a wasteful number, since it uses less digits than its factorization.

680713548781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765707163.

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 680713548781 in words is "six hundred eighty billion, seven hundred thirteen million, five hundred forty-eight thousand, seven hundred eighty-one".