683733957889 has 2 divisors, whose sum is σ = 683733957890. Its totient is φ = 683733957888.

The previous prime is 683733957853. The next prime is 683733957931. The reversal of 683733957889 is 988759337386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420303262864 + 263430695025 = 648308^2 + 513255^2 .

It is a cyclic number.

It is not a de Polignac number, because 683733957889 - 2²¹ = 683731860737 is a prime.

It is not a weakly prime, because it can be changed into another prime (683733957089) by changing a digit.

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 as a sum of consecutive naturals, namely, 341866978944 + 341866978945.

It is an arithmetic number, because the mean of its divisors is an integer number (341866978945).

Almost surely, 2^683733957889 is an apocalyptic number.

It is an amenable number.

683733957889 is a deficient number, since it is larger than the sum of its proper divisors (1).

683733957889 is an equidigital number, since it uses as much as digits as its factorization.

683733957889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1646023680, while the sum is 76.

The spelling of 683733957889 in words is "six hundred eighty-three billion, seven hundred thirty-three million, nine hundred fifty-seven thousand, eight hundred eighty-nine".