129529411768 has 16 divisors (see below), whose sum is σ = 243601391160. Its totient is φ = 64569040800.

The previous prime is 129529411733. The next prime is 129529411769. The reversal of 129529411768 is 867114925921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129529411769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24455323 + ... + 24460618.

Almost surely, 2^129529411768 is an apocalyptic number.

It is an amenable number.

129529411768 is a deficient number, since it is larger than the sum of its proper divisors (114071979392).

129529411768 is a wasteful number, since it uses less digits than its factorization.

129529411768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48916278 (or 48916274 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 55.

The spelling of 129529411768 in words is "one hundred twenty-nine billion, five hundred twenty-nine million, four hundred eleven thousand, seven hundred sixty-eight".