198738345298 has 16 divisors (see below), whose sum is σ = 299098520064. Its totient is φ = 99039386880.

The previous prime is 198738345259. The next prime is 198738345307. The reversal of 198738345298 is 892543837891.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591711 + ... + 864637.

It is an arithmetic number, because the mean of its divisors is an integer number (18693657504).

Almost surely, 2^198738345298 is an apocalyptic number.

198738345298 is a deficient number, since it is larger than the sum of its proper divisors (100360174766).

198738345298 is a wasteful number, since it uses less digits than its factorization.

198738345298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274137.

The product of its digits is 104509440, while the sum is 67.

The spelling of 198738345298 in words is "one hundred ninety-eight billion, seven hundred thirty-eight million, three hundred forty-five thousand, two hundred ninety-eight".