129967193081863 has 2 divisors, whose sum is σ = 129967193081864. Its totient is φ = 129967193081862.

The previous prime is 129967193081851. The next prime is 129967193081893. The reversal of 129967193081863 is 368180391769921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129967193081863 - 2²⁵ = 129967159527431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129967193081893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64983596540931 + 64983596540932.

It is an arithmetic number, because the mean of its divisors is an integer number (64983596540932).

Almost surely, 2^{129967193081863} is an apocalyptic number.

129967193081863 is a deficient number, since it is larger than the sum of its proper divisors (1).

129967193081863 is an equidigital number, since it uses as much as digits as its factorization.

129967193081863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211631616, while the sum is 73.

The spelling of 129967193081863 in words is "one hundred twenty-nine trillion, nine hundred sixty-seven billion, one hundred ninety-three million, eighty-one thousand, eight hundred sixty-three".