198384964864722 has 16 divisors (see below), whose sum is σ = 440855477477280. Its totient is φ = 66128321621556.

The previous prime is 198384964864717. The next prime is 198384964864727. The reversal of 198384964864722 is 227468469483891.

198384964864722 is a `hidden beast` number, since 1 + 9 + 8 + 3 + 8 + 4 + 9 + 64 + 86 + 472 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (198384964864717) and next prime (198384964864727).

It is not an unprimeable number, because it can be changed into a prime (198384964864727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1836897822768 + ... + 1836897822875.

It is an arithmetic number, because the mean of its divisors is an integer number (27553467342330).

Almost surely, 2^{198384964864722} is an apocalyptic number.

198384964864722 is an abundant number, since it is smaller than the sum of its proper divisors (242470512612558).

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

198384964864722 is a wasteful number, since it uses less digits than its factorization.

198384964864722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673795645654 (or 3673795645648 counting only the distinct ones).

The product of its digits is 8026324992, while the sum is 81.

The spelling of 198384964864722 in words is "one hundred ninety-eight trillion, three hundred eighty-four billion, nine hundred sixty-four million, eight hundred sixty-four thousand, seven hundred twenty-two".