6809019509426 has 8 divisors (see below), whose sum is σ = 10814325103260. Its totient is φ = 3204244475008.

The previous prime is 6809019509399. The next prime is 6809019509459. The reversal of 6809019509426 is 6249059109086.

It can be written as a sum of positive squares in 2 ways, for example, as 6711472603801 + 97546905625 = 2590651^2 + 312325^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100132639811 + ... + 100132639878.

Almost surely, 2^{6809019509426} is an apocalyptic number.

6809019509426 is a deficient number, since it is larger than the sum of its proper divisors (4005305593834).

6809019509426 is a wasteful number, since it uses less digits than its factorization.

6809019509426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200265279708.

The product of its (nonzero) digits is 8398080, while the sum is 59.

The spelling of 6809019509426 in words is "six trillion, eight hundred nine billion, nineteen million, five hundred nine thousand, four hundred twenty-six".