129153403020975 has 12 divisors (see below), whose sum is σ = 213533626328136. Its totient is φ = 68881814944480.

The previous prime is 129153403020883. The next prime is 129153403020979. The reversal of 129153403020975 is 579020304351921.

It is not a de Polignac number, because 129153403020975 - 2¹² = 129153403016879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129153403020979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 861022686732 + ... + 861022686881.

It is an arithmetic number, because the mean of its divisors is an integer number (17794468860678).

Almost surely, 2^{129153403020975} is an apocalyptic number.

129153403020975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129153403020975 is a deficient number, since it is larger than the sum of its proper divisors (84380223307161).

129153403020975 is a wasteful number, since it uses less digits than its factorization.

129153403020975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722045373626 (or 1722045373621 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 51.

The spelling of 129153403020975 in words is "one hundred twenty-nine trillion, one hundred fifty-three billion, four hundred three million, twenty thousand, nine hundred seventy-five".