8191932713 has 2 divisors, whose sum is σ = 8191932714. Its totient is φ = 8191932712.

The previous prime is 8191932641. The next prime is 8191932737. The reversal of 8191932713 is 3172391918.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6287221264 + 1904711449 = 79292^2 + 43643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8191932713 is a prime.

It is not a weakly prime, because it can be changed into another prime (8191932743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4095966356 + 4095966357.

It is an arithmetic number, because the mean of its divisors is an integer number (4095966357).

Almost surely, 2^8191932713 is an apocalyptic number.

It is an amenable number.

8191932713 is a deficient number, since it is larger than the sum of its proper divisors (1).

8191932713 is an equidigital number, since it uses as much as digits as its factorization.

8191932713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 44.

The square root of 8191932713 is about 90509.2962794430. The cubic root of 8191932713 is about 2015.8681605258.

The spelling of 8191932713 in words is "eight billion, one hundred ninety-one million, nine hundred thirty-two thousand, seven hundred thirteen".