8196570913 has 2 divisors, whose sum is σ = 8196570914. Its totient is φ = 8196570912.

The previous prime is 8196570887. The next prime is 8196570917. The reversal of 8196570913 is 3190756918.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5920994704 + 2275576209 = 76948^2 + 47703^2 .

It is a cyclic number.

It is not a de Polignac number, because 8196570913 - 2²¹ = 8194473761 is a prime.

It is not a weakly prime, because it can be changed into another prime (8196570917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4098285456 + 4098285457.

It is an arithmetic number, because the mean of its divisors is an integer number (4098285457).

Almost surely, 2^8196570913 is an apocalyptic number.

It is an amenable number.

8196570913 is a deficient number, since it is larger than the sum of its proper divisors (1).

8196570913 is an equidigital number, since it uses as much as digits as its factorization.

8196570913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 8196570913 is about 90534.9154359797. The cubic root of 8196570913 is about 2016.2485443317.

The spelling of 8196570913 in words is "eight billion, one hundred ninety-six million, five hundred seventy thousand, nine hundred thirteen".