1680512513 has 8 divisors (see below), whose sum is σ = 1773424320. Its totient is φ = 1588047120.

The previous prime is 1680512501. The next prime is 1680512539. The reversal of 1680512513 is 3152150861.

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

It is a cyclic number.

It is not a de Polignac number, because 1680512513 - 2²⁰ = 1679463937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1680512513.

It is not an unprimeable number, because it can be changed into a prime (1680512563) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 103853 + ... + 118938.

It is an arithmetic number, because the mean of its divisors is an integer number (221678040).

Almost surely, 2^1680512513 is an apocalyptic number.

It is an amenable number.

1680512513 is a deficient number, since it is larger than the sum of its proper divisors (92911807).

1680512513 is a wasteful number, since it uses less digits than its factorization.

1680512513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223207.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 1680512513 is about 40994.0546055157. The cubic root of 1680512513 is about 1188.9052646616.

The spelling of 1680512513 in words is "one billion, six hundred eighty million, five hundred twelve thousand, five hundred thirteen".