6809819914 has 8 divisors (see below), whose sum is σ = 10815596388. Its totient is φ = 3204621120.

The previous prime is 6809819911. The next prime is 6809819923. The reversal of 6809819914 is 4199189086.

It can be written as a sum of positive squares in 2 ways, for example, as 6249693025 + 560126889 = 79055^2 + 23667^2 .

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

It is a super-2 number, since 2×6809819914² = 92747294522221934792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6809819911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100144377 + ... + 100144444.

Almost surely, 2^6809819914 is an apocalyptic number.

6809819914 is a deficient number, since it is larger than the sum of its proper divisors (4005776474).

6809819914 is a wasteful number, since it uses less digits than its factorization.

6809819914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200288840.

The product of its (nonzero) digits is 1119744, while the sum is 55.

The square root of 6809819914 is about 82521.6330061397. The cubic root of 6809819914 is about 1895.4480055954.

The spelling of 6809819914 in words is "six billion, eight hundred nine million, eight hundred nineteen thousand, nine hundred fourteen".