219996794573 has 2 divisors, whose sum is σ = 219996794574. Its totient is φ = 219996794572.

The previous prime is 219996794533. The next prime is 219996794579. The reversal of 219996794573 is 375497699912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152070361444 + 67926433129 = 389962^2 + 260627^2 .

It is a cyclic number.

It is not a de Polignac number, because 219996794573 - 2¹² = 219996790477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 219996794497 and 219996794506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219996794579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109998397286 + 109998397287.

It is an arithmetic number, because the mean of its divisors is an integer number (109998397287).

Almost surely, 2^219996794573 is an apocalyptic number.

It is an amenable number.

219996794573 is a deficient number, since it is larger than the sum of its proper divisors (1).

219996794573 is an equidigital number, since it uses as much as digits as its factorization.

219996794573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 231472080, while the sum is 71.

The spelling of 219996794573 in words is "two hundred nineteen billion, nine hundred ninety-six million, seven hundred ninety-four thousand, five hundred seventy-three".