129689543025 has 36 divisors (see below), whose sum is σ = 265472439232. Its totient is φ = 59286647520.

The previous prime is 129689543021. The next prime is 129689543029. The reversal of 129689543025 is 520345986921.

129689543025 is a `hidden beast` number, since 1 + 2 + 96 + 8 + 9 + 543 + 0 + 2 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (129689543021) and next prime (129689543029).

It is not a de Polignac number, because 129689543025 - 2² = 129689543021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129689543021) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 41169709 + ... + 41172858.

Almost surely, 2^129689543025 is an apocalyptic number.

129689543025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129689543025 is an abundant number, since it is smaller than the sum of its proper divisors (135782896207).

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

129689543025 is a wasteful number, since it uses less digits than its factorization.

129689543025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82342590 (or 82342582 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 129689543025 in words is "one hundred twenty-nine billion, six hundred eighty-nine million, five hundred forty-three thousand, twenty-five".