198434119569 has 16 divisors (see below), whose sum is σ = 302404147200. Its totient is φ = 113380295760.

The previous prime is 198434119549. The next prime is 198434119577. The reversal of 198434119569 is 965911434891.

It is not a de Polignac number, because 198434119569 - 2⁵ = 198434119537 is a prime.

It is a super-2 number, since 2×198434119569² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198434119529) 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, 210727 + ... + 664284.

It is an arithmetic number, because the mean of its divisors is an integer number (18900259200).

Almost surely, 2^198434119569 is an apocalyptic number.

It is an amenable number.

198434119569 is a deficient number, since it is larger than the sum of its proper divisors (103970027631).

198434119569 is a wasteful number, since it uses less digits than its factorization.

198434119569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885820.

The product of its digits is 8398080, while the sum is 60.

It can be divided in two parts, 198434 and 119569, that added together give a triangular number (318003 = T₇₉₇).

The spelling of 198434119569 in words is "one hundred ninety-eight billion, four hundred thirty-four million, one hundred nineteen thousand, five hundred sixty-nine".