683091900809 has 4 divisors (see below), whose sum is σ = 683347647360. Its totient is φ = 682836154260.

The previous prime is 683091900773. The next prime is 683091900859. The reversal of 683091900809 is 908009190386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 683091900809 - 2⁸ = 683091900553 is a prime.

It is a super-2 number, since 2×683091900809² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683091900859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127869269 + ... + 127874610.

It is an arithmetic number, because the mean of its divisors is an integer number (170836911840).

Almost surely, 2^683091900809 is an apocalyptic number.

It is an amenable number.

683091900809 is a deficient number, since it is larger than the sum of its proper divisors (255746551).

683091900809 is a wasteful number, since it uses less digits than its factorization.

683091900809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255746550.

The product of its (nonzero) digits is 839808, while the sum is 53.

The spelling of 683091900809 in words is "six hundred eighty-three billion, ninety-one million, nine hundred thousand, eight hundred nine".