1680310810 has 8 divisors (see below), whose sum is σ = 3024559476. Its totient is φ = 672124320.

The previous prime is 1680310799. The next prime is 1680310811. The reversal of 1680310810 is 180130861.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1657548369 + 22762441 = 40713^2 + 4771^2 .

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

It is a super-2 number, since 2×1680310810² = 5646888836405712200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1680310811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84015531 + ... + 84015550.

Almost surely, 2^1680310810 is an apocalyptic number.

1680310810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1680310810 is a deficient number, since it is larger than the sum of its proper divisors (1344248666).

1680310810 is a wasteful number, since it uses less digits than its factorization.

1680310810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168031088.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1680310810 is about 40991.5943822633. The cubic root of 1680310810 is about 1188.8576967616.

The spelling of 1680310810 in words is "one billion, six hundred eighty million, three hundred ten thousand, eight hundred ten".