198795629129 has 16 divisors (see below), whose sum is σ = 220151001600. Its totient is φ = 178551521280.

The previous prime is 198795629113. The next prime is 198795629143. The reversal of 198795629129 is 921926597891.

It is a cyclic number.

It is not a de Polignac number, because 198795629129 - 2⁴ = 198795629113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198795629629) 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, 421304 + ... + 758345.

It is an arithmetic number, because the mean of its divisors is an integer number (13759437600).

Almost surely, 2^198795629129 is an apocalyptic number.

It is an amenable number.

198795629129 is a deficient number, since it is larger than the sum of its proper divisors (21355372471).

198795629129 is a wasteful number, since it uses less digits than its factorization.

198795629129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180120.

The product of its digits is 44089920, while the sum is 68.

The spelling of 198795629129 in words is "one hundred ninety-eight billion, seven hundred ninety-five million, six hundred twenty-nine thousand, one hundred twenty-nine".