8419199213 has 2 divisors, whose sum is σ = 8419199214. Its totient is φ = 8419199212.

The previous prime is 8419199209. The next prime is 8419199267. The reversal of 8419199213 is 3129919148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5669035849 + 2750163364 = 75293^2 + 52442^2 .

It is a cyclic number.

It is not a de Polignac number, because 8419199213 - 2² = 8419199209 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 (8419199273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4209599606 + 4209599607.

It is an arithmetic number, because the mean of its divisors is an integer number (4209599607).

Almost surely, 2^8419199213 is an apocalyptic number.

It is an amenable number.

8419199213 is a deficient number, since it is larger than the sum of its proper divisors (1).

8419199213 is an equidigital number, since it uses as much as digits as its factorization.

8419199213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 47.

The square root of 8419199213 is about 91756.1944121485. The cubic root of 8419199213 is about 2034.3402661526.

The spelling of 8419199213 in words is "eight billion, four hundred nineteen million, one hundred ninety-nine thousand, two hundred thirteen".