8196651389 has 2 divisors, whose sum is σ = 8196651390. Its totient is φ = 8196651388.

The previous prime is 8196651383. The next prime is 8196651391. The reversal of 8196651389 is 9831566918.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6896472025 + 1300179364 = 83045^2 + 36058^2 .

It is a cyclic number.

It is not a de Polignac number, because 8196651389 - 2¹² = 8196647293 is a prime.

Together with 8196651391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8196651383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4098325694 + 4098325695.

It is an arithmetic number, because the mean of its divisors is an integer number (4098325695).

Almost surely, 2^8196651389 is an apocalyptic number.

It is an amenable number.

8196651389 is a deficient number, since it is larger than the sum of its proper divisors (1).

8196651389 is an equidigital number, since it uses as much as digits as its factorization.

8196651389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 56.

The square root of 8196651389 is about 90535.3598822029. The cubic root of 8196651389 is about 2016.2551429889.

The spelling of 8196651389 in words is "eight billion, one hundred ninety-six million, six hundred fifty-one thousand, three hundred eighty-nine".