170763808213 has 2 divisors, whose sum is σ = 170763808214. Its totient is φ = 170763808212.

The previous prime is 170763808141. The next prime is 170763808219. The reversal of 170763808213 is 312808367071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169211290609 + 1552517604 = 411353^2 + 39402^2 .

It is an emirp because it is prime and its reverse (312808367071) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170763808213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170763808219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85381904106 + 85381904107.

It is an arithmetic number, because the mean of its divisors is an integer number (85381904107).

Almost surely, 2^170763808213 is an apocalyptic number.

It is an amenable number.

170763808213 is a deficient number, since it is larger than the sum of its proper divisors (1).

170763808213 is an equidigital number, since it uses as much as digits as its factorization.

170763808213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 170763808213 in words is "one hundred seventy billion, seven hundred sixty-three million, eight hundred eight thousand, two hundred thirteen".