199294979088 has 160 divisors (see below), whose sum is σ = 558238556160. Its totient is φ = 61027706880.

The previous prime is 199294979087. The next prime is 199294979099. The reversal of 199294979088 is 880979492991.

It is not an unprimeable number, because it can be changed into a prime (199294979087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14528553 + ... + 14542263.

It is an arithmetic number, because the mean of its divisors is an integer number (3488990976).

Almost surely, 2^199294979088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199294979088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279119278080).

199294979088 is an abundant number, since it is smaller than the sum of its proper divisors (358943577072).

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

199294979088 is a wasteful number, since it uses less digits than its factorization.

199294979088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14165 (or 14159 counting only the distinct ones).

The product of its (nonzero) digits is 211631616, while the sum is 75.

The spelling of 199294979088 in words is "one hundred ninety-nine billion, two hundred ninety-four million, nine hundred seventy-nine thousand, eighty-eight".