219583240109 has 2 divisors, whose sum is σ = 219583240110. Its totient is φ = 219583240108.

The previous prime is 219583240087. The next prime is 219583240127. The reversal of 219583240109 is 901042385912.

219583240109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170881370884 + 48701869225 = 413378^2 + 220685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-219583240109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 219583240109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219583240609) 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, 109791620054 + 109791620055.

It is an arithmetic number, because the mean of its divisors is an integer number (109791620055).

Almost surely, 2^219583240109 is an apocalyptic number.

It is an amenable number.

219583240109 is a deficient number, since it is larger than the sum of its proper divisors (1).

219583240109 is an equidigital number, since it uses as much as digits as its factorization.

219583240109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 219583240109 in words is "two hundred nineteen billion, five hundred eighty-three million, two hundred forty thousand, one hundred nine".