198321430374 has 16 divisors (see below), whose sum is σ = 440714289840. Its totient is φ = 66107143440.

The previous prime is 198321430357. The next prime is 198321430429. The reversal of 198321430374 is 473034123891.

198321430374 is a `hidden beast` number, since 19 + 8 + 321 + 4 + 303 + 7 + 4 = 666.

It is a Curzon number.

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, 1836309487 + ... + 1836309594.

It is an arithmetic number, because the mean of its divisors is an integer number (27544643115).

Almost surely, 2^198321430374 is an apocalyptic number.

198321430374 is an abundant number, since it is smaller than the sum of its proper divisors (242392859466).

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

198321430374 is a wasteful number, since it uses less digits than its factorization.

198321430374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672619092 (or 3672619086 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 198321430374 in words is "one hundred ninety-eight billion, three hundred twenty-one million, four hundred thirty thousand, three hundred seventy-four".