8739661352197 has 2 divisors, whose sum is σ = 8739661352198. Its totient is φ = 8739661352196.

The previous prime is 8739661352159. The next prime is 8739661352221. The reversal of 8739661352197 is 7912531669378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5123278333156 + 3616383019041 = 2263466^2 + 1901679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8739661352197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8739661352297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4369830676098 + 4369830676099.

It is an arithmetic number, because the mean of its divisors is an integer number (4369830676099).

Almost surely, 2^{8739661352197} is an apocalyptic number.

It is an amenable number.

8739661352197 is a deficient number, since it is larger than the sum of its proper divisors (1).

8739661352197 is an equidigital number, since it uses as much as digits as its factorization.

8739661352197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102876480, while the sum is 67.

The spelling of 8739661352197 in words is "eight trillion, seven hundred thirty-nine billion, six hundred sixty-one million, three hundred fifty-two thousand, one hundred ninety-seven".