1681834850 has 12 divisors (see below), whose sum is σ = 3128212914. Its totient is φ = 672733920.

The previous prime is 1681834841. The next prime is 1681834859. The reversal of 1681834850 is 584381861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1681834841) and next prime (1681834859).

It can be written as a sum of positive squares in 3 ways, for example, as 971132569 + 710702281 = 31163^2 + 26659^2 .

It is not an unprimeable number, because it can be changed into a prime (1681834859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16818299 + ... + 16818398.

Almost surely, 2^1681834850 is an apocalyptic number.

1681834850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1681834850 is a deficient number, since it is larger than the sum of its proper divisors (1446378064).

1681834850 is a wasteful number, since it uses less digits than its factorization.

1681834850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33636709 (or 33636704 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 1681834850 is about 41010.1798337925. The cubic root of 1681834850 is about 1189.2170190096.

The spelling of 1681834850 in words is "one billion, six hundred eighty-one million, eight hundred thirty-four thousand, eight hundred fifty".