129213763507 has 2 divisors, whose sum is σ = 129213763508. Its totient is φ = 129213763506.

The previous prime is 129213763501. The next prime is 129213763603. The reversal of 129213763507 is 705367312921.

It is a weak prime.

It is an emirp because it is prime and its reverse (705367312921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129213763507 - 2⁷ = 129213763379 is a prime.

It is not a weakly prime, because it can be changed into another prime (129213763501) 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, 64606881753 + 64606881754.

It is an arithmetic number, because the mean of its divisors is an integer number (64606881754).

Almost surely, 2^129213763507 is an apocalyptic number.

129213763507 is a deficient number, since it is larger than the sum of its proper divisors (1).

129213763507 is an equidigital number, since it uses as much as digits as its factorization.

129213763507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 129213763507 in words is "one hundred twenty-nine billion, two hundred thirteen million, seven hundred sixty-three thousand, five hundred seven".