8361693565913 has 2 divisors, whose sum is σ = 8361693565914. Its totient is φ = 8361693565912.

The previous prime is 8361693565909. The next prime is 8361693565949. The reversal of 8361693565913 is 3195653961638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8297931255769 + 63762310144 = 2880613^2 + 252512^2 .

It is a cyclic number.

It is not a de Polignac number, because 8361693565913 - 2² = 8361693565909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8361693565913.

It is not a weakly prime, because it can be changed into another prime (8361693555913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4180846782956 + 4180846782957.

It is an arithmetic number, because the mean of its divisors is an integer number (4180846782957).

Almost surely, 2^{8361693565913} is an apocalyptic number.

It is an amenable number.

8361693565913 is a deficient number, since it is larger than the sum of its proper divisors (1).

8361693565913 is an equidigital number, since it uses as much as digits as its factorization.

8361693565913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94478400, while the sum is 65.

The spelling of 8361693565913 in words is "eight trillion, three hundred sixty-one billion, six hundred ninety-three million, five hundred sixty-five thousand, nine hundred thirteen".