1680857243800 has 48 divisors (see below), whose sum is σ = 4466277822960. Its totient is φ = 576293911680.

The previous prime is 1680857243773. The next prime is 1680857243839. The reversal of 1680857243800 is 83427580861.

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, 600304759 + ... + 600307558.

It is an arithmetic number, because the mean of its divisors is an integer number (93047454645).

Almost surely, 2^{1680857243800} is an apocalyptic number.

1680857243800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1680857243800 is an abundant number, since it is smaller than the sum of its proper divisors (2785420579160).

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

1680857243800 is a wasteful number, since it uses less digits than its factorization.

1680857243800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200612340 (or 1200612331 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 1680857243800 in words is "one trillion, six hundred eighty billion, eight hundred fifty-seven million, two hundred forty-three thousand, eight hundred".