1680347012 has 12 divisors (see below), whose sum is σ = 2942951760. Its totient is φ = 839503656.

The previous prime is 1680346981. The next prime is 1680347021. The reversal of 1680347012 is 2107430861.

It is a self number, because there is not a number n which added to its sum of digits gives 1680347012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161798 + ... + 171869.

It is an arithmetic number, because the mean of its divisors is an integer number (245245980).

Almost surely, 2^1680347012 is an apocalyptic number.

It is an amenable number.

1680347012 is a deficient number, since it is larger than the sum of its proper divisors (1262604748).

1680347012 is a wasteful number, since it uses less digits than its factorization.

1680347012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334930 (or 334928 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1680347012 is about 40992.0359582200. The cubic root of 1680347012 is about 1188.8662346100.

Adding to 1680347012 its reverse (2107430861), we get a palindrome (3787777873).

The spelling of 1680347012 in words is "one billion, six hundred eighty million, three hundred forty-seven thousand, twelve".