129797606925 has 96 divisors (see below), whose sum is σ = 272984313600. Its totient is φ = 59231969280.

The previous prime is 129797606837. The next prime is 129797606977. The reversal of 129797606925 is 529606797921.

129797606925 is a `hidden beast` number, since 12 + 9 + 7 + 9 + 7 + 606 + 9 + 2 + 5 = 666.

It is not a de Polignac number, because 129797606925 - 2²⁰ = 129796558349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2702521 + ... + 2750129.

It is an arithmetic number, because the mean of its divisors is an integer number (2843586600).

Almost surely, 2^129797606925 is an apocalyptic number.

129797606925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129797606925 is an abundant number, since it is smaller than the sum of its proper divisors (143186706675).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129797606925 is a wasteful number, since it uses less digits than its factorization.

129797606925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48212 (or 48201 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 63.

The spelling of 129797606925 in words is "one hundred twenty-nine billion, seven hundred ninety-seven million, six hundred six thousand, nine hundred twenty-five".