198934236822 has 16 divisors (see below), whose sum is σ = 402662070720. Its totient is φ = 65512479432.

The previous prime is 198934236799. The next prime is 198934236847. The reversal of 198934236822 is 228632439891.

It is a congruent number.

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, 199732672 + ... + 199733667.

It is an arithmetic number, because the mean of its divisors is an integer number (25166379420).

Almost surely, 2^198934236822 is an apocalyptic number.

198934236822 is an abundant number, since it is smaller than the sum of its proper divisors (203727833898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198934236822 is a wasteful number, since it uses less digits than its factorization.

198934236822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399466427.

The product of its digits is 8957952, while the sum is 57.

The spelling of 198934236822 in words is "one hundred ninety-eight billion, nine hundred thirty-four million, two hundred thirty-six thousand, eight hundred twenty-two".