680783445838 has 8 divisors (see below), whose sum is σ = 1037915745480. Its totient is φ = 334811530680.

The previous prime is 680783445817. The next prime is 680783445869. The reversal of 680783445838 is 838544387086.

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

It is a super-2 number, since 2×680783445838² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 680783445838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2790095968 + ... + 2790096211.

It is an arithmetic number, because the mean of its divisors is an integer number (129739468185).

Almost surely, 2^680783445838 is an apocalyptic number.

680783445838 is a deficient number, since it is larger than the sum of its proper divisors (357132299642).

680783445838 is a wasteful number, since it uses less digits than its factorization.

680783445838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5580192242.

The product of its (nonzero) digits is 123863040, while the sum is 64.

The spelling of 680783445838 in words is "six hundred eighty billion, seven hundred eighty-three million, four hundred forty-five thousand, eight hundred thirty-eight".