683818186489 has 9 divisors (see below), whose sum is σ = 700127172549. Its totient is φ = 667880706780.

The previous prime is 683818186481. The next prime is 683818186507. The reversal of 683818186489 is 984681818386.

The square root of 683818186489 is 826933.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 683818186489 - 2³ = 683818186481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683818186481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 35548504 + ... + 35567734.

It is an arithmetic number, because the mean of its divisors is an integer number (77791908061).

Almost surely, 2^683818186489 is an apocalyptic number.

683818186489 is the 826933-rd square number.

683818186489 is the 413467-th centered octagonal number.

It is an amenable number.

683818186489 is a deficient number, since it is larger than the sum of its proper divisors (16308986060).

683818186489 is an frugal number, since it uses more digits than its factorization.

683818186489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38548 (or 19274 counting only the distinct ones).

The product of its digits is 127401984, while the sum is 70.

The spelling of 683818186489 in words is "six hundred eighty-three billion, eight hundred eighteen million, one hundred eighty-six thousand, four hundred eighty-nine".