680938055587 has 8 divisors (see below), whose sum is σ = 691115044176. Its totient is φ = 670761471072.

The previous prime is 680938055557. The next prime is 680938055641. The reversal of 680938055587 is 785550839086.

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 680938055587 - 2¹⁹ = 680937531299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680938055507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6317793 + ... + 6424669.

It is an arithmetic number, because the mean of its divisors is an integer number (86389380522).

Almost surely, 2^680938055587 is an apocalyptic number.

680938055587 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

680938055587 is a deficient number, since it is larger than the sum of its proper divisors (10176988589).

680938055587 is a wasteful number, since it uses less digits than its factorization.

680938055587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202037.

The product of its (nonzero) digits is 72576000, while the sum is 64.

The spelling of 680938055587 in words is "six hundred eighty billion, nine hundred thirty-eight million, fifty-five thousand, five hundred eighty-seven".