198268129535 has 16 divisors (see below), whose sum is σ = 275186612736. Its totient is φ = 134317271328.

The previous prime is 198268129513. The next prime is 198268129583. The reversal of 198268129535 is 535921862891.

It is a cyclic number.

It is not a de Polignac number, because 198268129535 - 2¹⁴ = 198268113151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34122419 + ... + 34128228.

It is an arithmetic number, because the mean of its divisors is an integer number (17199163296).

Almost surely, 2^198268129535 is an apocalyptic number.

198268129535 is a deficient number, since it is larger than the sum of its proper divisors (76918483201).

198268129535 is an equidigital number, since it uses as much as digits as its factorization.

198268129535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68250742.

The product of its digits is 9331200, while the sum is 59.

The spelling of 198268129535 in words is "one hundred ninety-eight billion, two hundred sixty-eight million, one hundred twenty-nine thousand, five hundred thirty-five".