1680364113 has 4 divisors (see below), whose sum is σ = 2240485488. Its totient is φ = 1120242740.

The previous prime is 1680364109. The next prime is 1680364129. The reversal of 1680364113 is 3114630861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3114630861 = 3 ⋅1038210287.

It is a cyclic number.

It is not a de Polignac number, because 1680364113 - 2² = 1680364109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1680364013) 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 3 ways as a sum of consecutive naturals, for example, 280060683 + ... + 280060688.

It is an arithmetic number, because the mean of its divisors is an integer number (560121372).

Almost surely, 2^1680364113 is an apocalyptic number.

It is an amenable number.

1680364113 is a deficient number, since it is larger than the sum of its proper divisors (560121375).

1680364113 is an equidigital number, since it uses as much as digits as its factorization.

1680364113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560121374.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1680364113 is about 40992.2445469872. The cubic root of 1680364113 is about 1188.8702676525.

Adding to 1680364113 its reverse (3114630861), we get a palindrome (4794994974).

The spelling of 1680364113 in words is "one billion, six hundred eighty million, three hundred sixty-four thousand, one hundred thirteen".