129916191593 has 2 divisors, whose sum is σ = 129916191594. Its totient is φ = 129916191592.

The previous prime is 129916191571. The next prime is 129916191599. The reversal of 129916191593 is 395191619921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114915576064 + 15000615529 = 338992^2 + 122477^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129916191593 is a prime.

It is not a weakly prime, because it can be changed into another prime (129916191599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64958095796 + 64958095797.

It is an arithmetic number, because the mean of its divisors is an integer number (64958095797).

Almost surely, 2^129916191593 is an apocalyptic number.

It is an amenable number.

129916191593 is a deficient number, since it is larger than the sum of its proper divisors (1).

129916191593 is an equidigital number, since it uses as much as digits as its factorization.

129916191593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1180980, while the sum is 56.

The spelling of 129916191593 in words is "one hundred twenty-nine billion, nine hundred sixteen million, one hundred ninety-one thousand, five hundred ninety-three".