680800871841 has 4 divisors (see below), whose sum is σ = 907734495792. Its totient is φ = 453867247892.

The previous prime is 680800871837. The next prime is 680800871867. The reversal of 680800871841 is 148178008086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 680800871841 - 2² = 680800871837 is a prime.

It is not an unprimeable number, because it can be changed into a prime (680800872841) 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 3 ways as a sum of consecutive naturals, for example, 113466811971 + ... + 113466811976.

It is an arithmetic number, because the mean of its divisors is an integer number (226933623948).

Almost surely, 2^680800871841 is an apocalyptic number.

It is an amenable number.

680800871841 is a deficient number, since it is larger than the sum of its proper divisors (226933623951).

680800871841 is a wasteful number, since it uses less digits than its factorization.

680800871841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226933623950.

The product of its (nonzero) digits is 688128, while the sum is 51.

The spelling of 680800871841 in words is "six hundred eighty billion, eight hundred million, eight hundred seventy-one thousand, eight hundred forty-one".