6340550189 has 2 divisors, whose sum is σ = 6340550190. Its totient is φ = 6340550188.

The previous prime is 6340550171. The next prime is 6340550239. The reversal of 6340550189 is 9810550436.

6340550189 = 45972² + 45973² + 45974².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4778956900 + 1561593289 = 69130^2 + 39517^2 .

It is a cyclic number.

It is not a de Polignac number, because 6340550189 - 2³² = 2045582893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6340550149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3170275094 + 3170275095.

It is an arithmetic number, because the mean of its divisors is an integer number (3170275095).

Almost surely, 2^6340550189 is an apocalyptic number.

It is an amenable number.

6340550189 is a deficient number, since it is larger than the sum of its proper divisors (1).

6340550189 is an equidigital number, since it uses as much as digits as its factorization.

6340550189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 6340550189 is about 79627.5717889225. The cubic root of 6340550189 is about 1850.8688579081.

The spelling of 6340550189 in words is "six billion, three hundred forty million, five hundred fifty thousand, one hundred eighty-nine".