619452713883209 has 2 divisors, whose sum is σ = 619452713883210. Its totient is φ = 619452713883208.

The previous prime is 619452713883173. The next prime is 619452713883217. The reversal of 619452713883209 is 902388317254916.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 612392825751184 + 7059888132025 = 24746572^2 + 2657045^2 .

It is a cyclic number.

It is not a de Polignac number, because 619452713883209 - 2¹² = 619452713879113 is a prime.

It is not a weakly prime, because it can be changed into another prime (619452713883299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309726356941604 + 309726356941605.

It is an arithmetic number, because the mean of its divisors is an integer number (309726356941605).

It is a 2-persistent number, because it is pandigital, and so is 2⋅619452713883209 = 1238905427766418, but 3⋅619452713883209 = 1858358141649627 is not.

Almost surely, 2^{619452713883209} is an apocalyptic number.

It is an amenable number.

619452713883209 is a deficient number, since it is larger than the sum of its proper divisors (1).

619452713883209 is an equidigital number, since it uses as much as digits as its factorization.

619452713883209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 156764160, while the sum is 68.

The spelling of 619452713883209 in words is "six hundred nineteen trillion, four hundred fifty-two billion, seven hundred thirteen million, eight hundred eighty-three thousand, two hundred nine".