198268129534 has 32 divisors (see below), whose sum is σ = 320899977216. Its totient is φ = 91605634560.

The previous prime is 198268129513. The next prime is 198268129583. The reversal of 198268129534 is 435921862891.

It is a happy number.

It is a super-2 number, since 2×198268129534² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 702319 + ... + 943285.

It is an arithmetic number, because the mean of its divisors is an integer number (10028124288).

Almost surely, 2^198268129534 is an apocalyptic number.

198268129534 is a deficient number, since it is larger than the sum of its proper divisors (122631847682).

198268129534 is a wasteful number, since it uses less digits than its factorization.

198268129534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241600.

The product of its digits is 7464960, while the sum is 58.

The spelling of 198268129534 in words is "one hundred ninety-eight billion, two hundred sixty-eight million, one hundred twenty-nine thousand, five hundred thirty-four".