219034482509 has 2 divisors, whose sum is σ = 219034482510. Its totient is φ = 219034482508.

The previous prime is 219034482493. The next prime is 219034482517. The reversal of 219034482509 is 905284430912.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205544356900 + 13490125609 = 453370^2 + 116147^2 .

It is a cyclic number.

It is not a de Polignac number, because 219034482509 - 2⁴ = 219034482493 is a prime.

It is a super-2 number, since 2×219034482509² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219034482599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109517241254 + 109517241255.

It is an arithmetic number, because the mean of its divisors is an integer number (109517241255).

Almost surely, 2^219034482509 is an apocalyptic number.

It is an amenable number.

219034482509 is a deficient number, since it is larger than the sum of its proper divisors (1).

219034482509 is an equidigital number, since it uses as much as digits as its factorization.

219034482509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 219034482509 in words is "two hundred nineteen billion, thirty-four million, four hundred eighty-two thousand, five hundred nine".