198288717092 has 48 divisors (see below), whose sum is σ = 375253179840. Its totient is φ = 91360317312.

The previous prime is 198288717079. The next prime is 198288717113. The reversal of 198288717092 is 290717882891.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11681003 + ... + 11697965.

It is an arithmetic number, because the mean of its divisors is an integer number (7817774580).

Almost surely, 2^198288717092 is an apocalyptic number.

It is an amenable number.

198288717092 is a deficient number, since it is larger than the sum of its proper divisors (176964462748).

198288717092 is a wasteful number, since it uses less digits than its factorization.

198288717092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21180 (or 21178 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 62.

The spelling of 198288717092 in words is "one hundred ninety-eight billion, two hundred eighty-eight million, seven hundred seventeen thousand, ninety-two".