129460973690887 has 2 divisors, whose sum is σ = 129460973690888. Its totient is φ = 129460973690886.

The previous prime is 129460973690869. The next prime is 129460973690947. The reversal of 129460973690887 is 788096379064921.

It is a weak prime.

It is an emirp because it is prime and its reverse (788096379064921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129460973690887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129460973690387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64730486845443 + 64730486845444.

It is an arithmetic number, because the mean of its divisors is an integer number (64730486845444).

Almost surely, 2^{129460973690887} is an apocalyptic number.

129460973690887 is a deficient number, since it is larger than the sum of its proper divisors (1).

129460973690887 is an equidigital number, since it uses as much as digits as its factorization.

129460973690887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975228416, while the sum is 79.

The spelling of 129460973690887 in words is "one hundred twenty-nine trillion, four hundred sixty billion, nine hundred seventy-three million, six hundred ninety thousand, eight hundred eighty-seven".