129779033107 has 16 divisors (see below), whose sum is σ = 140648555520. Its totient is φ = 119270616192.

The previous prime is 129779033099. The next prime is 129779033119. The reversal of 129779033107 is 701330977921.

It is a cyclic number.

It is not a de Polignac number, because 129779033107 - 2³ = 129779033099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129779033207) 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, 2771394 + ... + 2817832.

It is an arithmetic number, because the mean of its divisors is an integer number (8790534720).

Almost surely, 2^129779033107 is an apocalyptic number.

129779033107 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

129779033107 is a deficient number, since it is larger than the sum of its proper divisors (10869522413).

129779033107 is a wasteful number, since it uses less digits than its factorization.

129779033107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50322.

The product of its (nonzero) digits is 500094, while the sum is 49.

The spelling of 129779033107 in words is "one hundred twenty-nine billion, seven hundred seventy-nine million, thirty-three thousand, one hundred seven".