680008081400 has 48 divisors (see below), whose sum is σ = 1581399237840. Its totient is φ = 271937779200.

The previous prime is 680008081373. The next prime is 680008081421. The reversal of 680008081400 is 4180800086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428405 + ... + 1242395.

It is an arithmetic number, because the mean of its divisors is an integer number (32945817455).

Almost surely, 2^680008081400 is an apocalyptic number.

It is an amenable number.

680008081400 is an abundant number, since it is smaller than the sum of its proper divisors (901391156440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680008081400 is a wasteful number, since it uses less digits than its factorization.

680008081400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818184 (or 818175 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

Adding to 680008081400 its reverse (4180800086), we get a palindrome (684188881486).

The spelling of 680008081400 in words is "six hundred eighty billion, eight million, eighty-one thousand, four hundred".