129114686605 has 16 divisors (see below), whose sum is σ = 164325542400. Its totient is φ = 97053428992.

The previous prime is 129114686579. The next prime is 129114686609. The reversal of 129114686605 is 506686411921.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 129114686605 - 2⁵ = 129114686573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129114686609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1217029 + ... + 1318858.

It is an arithmetic number, because the mean of its divisors is an integer number (10270346400).

Almost surely, 2^129114686605 is an apocalyptic number.

It is an amenable number.

129114686605 is a deficient number, since it is larger than the sum of its proper divisors (35210855795).

129114686605 is a wasteful number, since it uses less digits than its factorization.

129114686605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536508.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 129114686605 in words is "one hundred twenty-nine billion, one hundred fourteen million, six hundred eighty-six thousand, six hundred five".