1681803395 has 16 divisors (see below), whose sum is σ = 2082296160. Its totient is φ = 1303161600.

The previous prime is 1681803377. The next prime is 1681803407. The reversal of 1681803395 is 5933081861.

It is not a de Polignac number, because 1681803395 - 2¹² = 1681799299 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016 + ... + 58005.

It is an arithmetic number, because the mean of its divisors is an integer number (130143510).

Almost surely, 2^1681803395 is an apocalyptic number.

1681803395 is a deficient number, since it is larger than the sum of its proper divisors (400492765).

1681803395 is a wasteful number, since it uses less digits than its factorization.

1681803395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59206.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1681803395 is about 41009.7963296576. The cubic root of 1681803395 is about 1189.2096050723.

The spelling of 1681803395 in words is "one billion, six hundred eighty-one million, eight hundred three thousand, three hundred ninety-five".