809996700426 has 16 divisors (see below), whose sum is σ = 1624407556224. Its totient is φ = 269263207584.

The previous prime is 809996700419. The next prime is 809996700511. The reversal of 809996700426 is 624007699908.

It is a self number, because there is not a number n which added to its sum of digits gives 809996700426.

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 7 ways as a sum of consecutive naturals, for example, 183920755 + ... + 183925158.

It is an arithmetic number, because the mean of its divisors is an integer number (101525472264).

Almost surely, 2^809996700426 is an apocalyptic number.

809996700426 is an abundant number, since it is smaller than the sum of its proper divisors (814410855798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

809996700426 is a wasteful number, since it uses less digits than its factorization.

809996700426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367846285.

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 809996700426 in words is "eight hundred nine billion, nine hundred ninety-six million, seven hundred thousand, four hundred twenty-six".