680873400087 has 4 divisors (see below), whose sum is σ = 907831200120. Its totient is φ = 453915600056.

The previous prime is 680873400073. The next prime is 680873400113. The reversal of 680873400087 is 780004378086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 680873400087 - 2⁶ = 680873400023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680873400017) 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 3 ways as a sum of consecutive naturals, for example, 113478900012 + ... + 113478900017.

It is an arithmetic number, because the mean of its divisors is an integer number (226957800030).

Almost surely, 2^680873400087 is an apocalyptic number.

680873400087 is a deficient number, since it is larger than the sum of its proper divisors (226957800033).

680873400087 is a wasteful number, since it uses less digits than its factorization.

680873400087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226957800032.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 680873400087 in words is "six hundred eighty billion, eight hundred seventy-three million, four hundred thousand, eighty-seven".